diff --git a/source-klaviyo/source_klaviyo/streams.py b/source-klaviyo/source_klaviyo/streams.py
index a6bcb3412d..733d873030 100644
--- a/source-klaviyo/source_klaviyo/streams.py
+++ b/source-klaviyo/source_klaviyo/streams.py
@@ -176,7 +176,7 @@ def request_params(
                 # Setting a minimum value of at least 3 seconds from the current time ensures this will never happen,
                 # and allows our 'abnormal_state' acceptance test to pass.
                 latest_cursor = min(latest_cursor, pendulum.now().subtract(seconds=3))
-                params["filter"] = f"greater-than({self.cursor_field},{latest_cursor.isoformat()})"
+                params["filter"] = f"greater-or-equal({self.cursor_field},{latest_cursor.isoformat()})"
             params["sort"] = self.cursor_field
         return params
 
diff --git a/source-klaviyo/tests/__init__.py b/source-klaviyo/tests/__init__.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/source-klaviyo/tests/snapshots/snapshots__discover__capture.stdout.json b/source-klaviyo/tests/snapshots/snapshots__discover__capture.stdout.json
new file mode 100644
index 0000000000..3600319c70
--- /dev/null
+++ b/source-klaviyo/tests/snapshots/snapshots__discover__capture.stdout.json
@@ -0,0 +1,307 @@
+[
+    {
+      "documentSchema": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "additionalProperties": true,
+        "properties": {
+          "_meta": {
+            "properties": {
+              "row_id": {
+                "type": "integer"
+              }
+            },
+            "required": [
+              "row_id"
+            ],
+            "type": "object"
+          },
+          "id": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id"
+        ],
+        "type": "object",
+        "x-infer-schema": true
+      },
+      "key": [
+        "/id"
+      ],
+      "recommendedName": "campaigns",
+      "resourceConfig": {
+        "cursorField": [
+          "updated_at"
+        ],
+        "stream": "campaigns",
+        "syncMode": "incremental"
+      }
+    },
+    {
+      "documentSchema": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "additionalProperties": true,
+        "properties": {
+          "_meta": {
+            "properties": {
+              "row_id": {
+                "type": "integer"
+              }
+            },
+            "required": [
+              "row_id"
+            ],
+            "type": "object"
+          },
+          "id": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id"
+        ],
+        "type": "object",
+        "x-infer-schema": true
+      },
+      "key": [
+        "/id"
+      ],
+      "recommendedName": "events",
+      "resourceConfig": {
+        "cursorField": [
+          "datetime"
+        ],
+        "stream": "events",
+        "syncMode": "incremental"
+      }
+    },
+    {
+      "documentSchema": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "additionalProperties": true,
+        "properties": {
+          "_meta": {
+            "properties": {
+              "row_id": {
+                "type": "integer"
+              }
+            },
+            "required": [
+              "row_id"
+            ],
+            "type": "object"
+          },
+          "id": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id"
+        ],
+        "type": "object",
+        "x-infer-schema": true
+      },
+      "key": [
+        "/id"
+      ],
+      "recommendedName": "global_exclusions",
+      "resourceConfig": {
+        "cursorField": [
+          "updated"
+        ],
+        "stream": "global_exclusions",
+        "syncMode": "incremental"
+      }
+    },
+    {
+      "documentSchema": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "additionalProperties": true,
+        "properties": {
+          "_meta": {
+            "properties": {
+              "row_id": {
+                "type": "integer"
+              }
+            },
+            "required": [
+              "row_id"
+            ],
+            "type": "object"
+          },
+          "id": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id"
+        ],
+        "type": "object",
+        "x-infer-schema": true
+      },
+      "key": [
+        "/id"
+      ],
+      "recommendedName": "lists",
+      "resourceConfig": {
+        "cursorField": [
+          "updated"
+        ],
+        "stream": "lists",
+        "syncMode": "incremental"
+      }
+    },
+    {
+      "documentSchema": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "additionalProperties": true,
+        "properties": {
+          "_meta": {
+            "properties": {
+              "row_id": {
+                "type": "integer"
+              }
+            },
+            "required": [
+              "row_id"
+            ],
+            "type": "object"
+          },
+          "id": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id"
+        ],
+        "type": "object",
+        "x-infer-schema": true
+      },
+      "key": [
+        "/id"
+      ],
+      "recommendedName": "metrics",
+      "resourceConfig": {
+        "cursorField": [
+          "updated"
+        ],
+        "stream": "metrics",
+        "syncMode": "incremental"
+      }
+    },
+    {
+      "documentSchema": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "additionalProperties": true,
+        "properties": {
+          "_meta": {
+            "properties": {
+              "row_id": {
+                "type": "integer"
+              }
+            },
+            "required": [
+              "row_id"
+            ],
+            "type": "object"
+          },
+          "id": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id"
+        ],
+        "type": "object",
+        "x-infer-schema": true
+      },
+      "key": [
+        "/id"
+      ],
+      "recommendedName": "flows",
+      "resourceConfig": {
+        "cursorField": [
+          "updated"
+        ],
+        "stream": "flows",
+        "syncMode": "incremental"
+      }
+    },
+    {
+      "documentSchema": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "additionalProperties": true,
+        "properties": {
+          "_meta": {
+            "properties": {
+              "row_id": {
+                "type": "integer"
+              }
+            },
+            "required": [
+              "row_id"
+            ],
+            "type": "object"
+          },
+          "id": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id"
+        ],
+        "type": "object",
+        "x-infer-schema": true
+      },
+      "key": [
+        "/id"
+      ],
+      "recommendedName": "email_templates",
+      "resourceConfig": {
+        "cursorField": [
+          "updated"
+        ],
+        "stream": "email_templates",
+        "syncMode": "incremental"
+      }
+    },
+    {
+      "documentSchema": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "additionalProperties": true,
+        "properties": {
+          "_meta": {
+            "properties": {
+              "row_id": {
+                "type": "integer"
+              }
+            },
+            "required": [
+              "row_id"
+            ],
+            "type": "object"
+          },
+          "id": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id"
+        ],
+        "type": "object",
+        "x-infer-schema": true
+      },
+      "key": [
+        "/id"
+      ],
+      "recommendedName": "profiles",
+      "resourceConfig": {
+        "cursorField": [
+          "updated"
+        ],
+        "stream": "profiles",
+        "syncMode": "incremental"
+      }
+    }
+  ]
+  
\ No newline at end of file
diff --git a/source-klaviyo/tests/snapshots/snapshots__spec__capture.stdout.json b/source-klaviyo/tests/snapshots/snapshots__spec__capture.stdout.json
new file mode 100644
index 0000000000..04638e9b2e
--- /dev/null
+++ b/source-klaviyo/tests/snapshots/snapshots__spec__capture.stdout.json
@@ -0,0 +1,77 @@
+[
+    {
+      "configSchema": {
+        "$schema": "http://json-schema.org/draft-07/schema#",
+        "properties": {
+          "api_key": {
+            "airbyte_secret": true,
+            "description": "Klaviyo API Key. See our docs if you need help finding this key: https://go.estuary.dev/JqH0gQ",
+            "order": 0,
+            "title": "Api Key",
+            "type": "string"
+          },
+          "start_date": {
+            "description": "UTC date and time in the format 2017-01-25T00:00:00Z. Any data before this date will not be replicated. This field is optional - if not provided, all data will be replicated.",
+            "examples": [
+              "2017-01-25T00:00:00Z"
+            ],
+            "format": "date-time",
+            "order": 1,
+            "pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}Z$",
+            "title": "Start Date",
+            "type": "string"
+          }
+        },
+        "required": [
+          "api_key"
+        ],
+        "title": "Klaviyo Spec",
+        "type": "object"
+      },
+      "documentationUrl": "https://go.estuary.dev/JqH0gQ",
+      "protocol": 3032023,
+      "resourceConfigSchema": {
+        "additionalProperties": false,
+        "description": "ResourceConfig encodes a configured resource stream",
+        "properties": {
+          "cursorField": {
+            "items": {
+              "type": "string"
+            },
+            "title": "Cursor Field",
+            "type": "array"
+          },
+          "namespace": {
+            "description": "Enclosing schema namespace of this resource",
+            "title": "Namespace",
+            "type": "string"
+          },
+          "stream": {
+            "description": "Name of this stream",
+            "title": "Stream",
+            "type": "string"
+          },
+          "syncMode": {
+            "description": "Sync this resource incrementally, or fully refresh it every run",
+            "enum": [
+              "full_refresh",
+              "incremental"
+            ],
+            "title": "Sync Mode",
+            "type": "string"
+          }
+        },
+        "required": [
+          "stream",
+          "syncMode"
+        ],
+        "title": "ResourceConfig",
+        "type": "object"
+      },
+      "resourcePathPointers": [
+        "/namespace",
+        "/stream"
+      ]
+    }
+  ]
+  
\ No newline at end of file
diff --git a/source-klaviyo/tests/snapshots/source_klaviyo_tests_test_snapshots__discover__capture.stdout.json b/source-klaviyo/tests/snapshots/source_klaviyo_tests_test_snapshots__discover__capture.stdout.json
deleted file mode 100644
index 7b35002914..0000000000
--- a/source-klaviyo/tests/snapshots/source_klaviyo_tests_test_snapshots__discover__capture.stdout.json
+++ /dev/null
@@ -1,306 +0,0 @@
-[
-  {
-    "documentSchema": {
-      "$schema": "http://json-schema.org/draft-07/schema#",
-      "additionalProperties": true,
-      "properties": {
-        "_meta": {
-          "properties": {
-            "row_id": {
-              "type": "integer"
-            }
-          },
-          "required": [
-            "row_id"
-          ],
-          "type": "object"
-        },
-        "id": {
-          "type": "string"
-        }
-      },
-      "required": [
-        "id"
-      ],
-      "type": "object",
-      "x-infer-schema": true
-    },
-    "key": [
-      "/id"
-    ],
-    "recommendedName": "campaigns",
-    "resourceConfig": {
-      "cursorField": [
-        "updated_at"
-      ],
-      "stream": "campaigns",
-      "syncMode": "incremental"
-    }
-  },
-  {
-    "documentSchema": {
-      "$schema": "http://json-schema.org/draft-07/schema#",
-      "additionalProperties": true,
-      "properties": {
-        "_meta": {
-          "properties": {
-            "row_id": {
-              "type": "integer"
-            }
-          },
-          "required": [
-            "row_id"
-          ],
-          "type": "object"
-        },
-        "id": {
-          "type": "string"
-        }
-      },
-      "required": [
-        "id"
-      ],
-      "type": "object",
-      "x-infer-schema": true
-    },
-    "key": [
-      "/id"
-    ],
-    "recommendedName": "events",
-    "resourceConfig": {
-      "cursorField": [
-        "datetime"
-      ],
-      "stream": "events",
-      "syncMode": "incremental"
-    }
-  },
-  {
-    "documentSchema": {
-      "$schema": "http://json-schema.org/draft-07/schema#",
-      "additionalProperties": true,
-      "properties": {
-        "_meta": {
-          "properties": {
-            "row_id": {
-              "type": "integer"
-            }
-          },
-          "required": [
-            "row_id"
-          ],
-          "type": "object"
-        },
-        "id": {
-          "type": "string"
-        }
-      },
-      "required": [
-        "id"
-      ],
-      "type": "object",
-      "x-infer-schema": true
-    },
-    "key": [
-      "/id"
-    ],
-    "recommendedName": "global_exclusions",
-    "resourceConfig": {
-      "cursorField": [
-        "updated"
-      ],
-      "stream": "global_exclusions",
-      "syncMode": "incremental"
-    }
-  },
-  {
-    "documentSchema": {
-      "$schema": "http://json-schema.org/draft-07/schema#",
-      "additionalProperties": true,
-      "properties": {
-        "_meta": {
-          "properties": {
-            "row_id": {
-              "type": "integer"
-            }
-          },
-          "required": [
-            "row_id"
-          ],
-          "type": "object"
-        },
-        "id": {
-          "type": "string"
-        }
-      },
-      "required": [
-        "id"
-      ],
-      "type": "object",
-      "x-infer-schema": true
-    },
-    "key": [
-      "/id"
-    ],
-    "recommendedName": "lists",
-    "resourceConfig": {
-      "cursorField": [
-        "updated"
-      ],
-      "stream": "lists",
-      "syncMode": "incremental"
-    }
-  },
-  {
-    "documentSchema": {
-      "$schema": "http://json-schema.org/draft-07/schema#",
-      "additionalProperties": true,
-      "properties": {
-        "_meta": {
-          "properties": {
-            "row_id": {
-              "type": "integer"
-            }
-          },
-          "required": [
-            "row_id"
-          ],
-          "type": "object"
-        },
-        "id": {
-          "type": "string"
-        }
-      },
-      "required": [
-        "id"
-      ],
-      "type": "object",
-      "x-infer-schema": true
-    },
-    "key": [
-      "/id"
-    ],
-    "recommendedName": "metrics",
-    "resourceConfig": {
-      "cursorField": [
-        "updated"
-      ],
-      "stream": "metrics",
-      "syncMode": "incremental"
-    }
-  },
-  {
-    "documentSchema": {
-      "$schema": "http://json-schema.org/draft-07/schema#",
-      "additionalProperties": true,
-      "properties": {
-        "_meta": {
-          "properties": {
-            "row_id": {
-              "type": "integer"
-            }
-          },
-          "required": [
-            "row_id"
-          ],
-          "type": "object"
-        },
-        "id": {
-          "type": "string"
-        }
-      },
-      "required": [
-        "id"
-      ],
-      "type": "object",
-      "x-infer-schema": true
-    },
-    "key": [
-      "/id"
-    ],
-    "recommendedName": "flows",
-    "resourceConfig": {
-      "cursorField": [
-        "updated"
-      ],
-      "stream": "flows",
-      "syncMode": "incremental"
-    }
-  },
-  {
-    "documentSchema": {
-      "$schema": "http://json-schema.org/draft-07/schema#",
-      "additionalProperties": true,
-      "properties": {
-        "_meta": {
-          "properties": {
-            "row_id": {
-              "type": "integer"
-            }
-          },
-          "required": [
-            "row_id"
-          ],
-          "type": "object"
-        },
-        "id": {
-          "type": "string"
-        }
-      },
-      "required": [
-        "id"
-      ],
-      "type": "object",
-      "x-infer-schema": true
-    },
-    "key": [
-      "/id"
-    ],
-    "recommendedName": "email_templates",
-    "resourceConfig": {
-      "cursorField": [
-        "updated"
-      ],
-      "stream": "email_templates",
-      "syncMode": "incremental"
-    }
-  },
-  {
-    "documentSchema": {
-      "$schema": "http://json-schema.org/draft-07/schema#",
-      "additionalProperties": true,
-      "properties": {
-        "_meta": {
-          "properties": {
-            "row_id": {
-              "type": "integer"
-            }
-          },
-          "required": [
-            "row_id"
-          ],
-          "type": "object"
-        },
-        "id": {
-          "type": "string"
-        }
-      },
-      "required": [
-        "id"
-      ],
-      "type": "object",
-      "x-infer-schema": true
-    },
-    "key": [
-      "/id"
-    ],
-    "recommendedName": "profiles",
-    "resourceConfig": {
-      "cursorField": [
-        "updated"
-      ],
-      "stream": "profiles",
-      "syncMode": "incremental"
-    }
-  }
-]
diff --git a/source-klaviyo/tests/snapshots/source_klaviyo_tests_test_snapshots__spec__capture.stdout.json b/source-klaviyo/tests/snapshots/source_klaviyo_tests_test_snapshots__spec__capture.stdout.json
deleted file mode 100644
index 69065662ca..0000000000
--- a/source-klaviyo/tests/snapshots/source_klaviyo_tests_test_snapshots__spec__capture.stdout.json
+++ /dev/null
@@ -1,76 +0,0 @@
-[
-  {
-    "configSchema": {
-      "$schema": "http://json-schema.org/draft-07/schema#",
-      "properties": {
-        "api_key": {
-          "airbyte_secret": true,
-          "description": "Klaviyo API Key. See our docs if you need help finding this key: https://go.estuary.dev/JqH0gQ",
-          "order": 0,
-          "title": "Api Key",
-          "type": "string"
-        },
-        "start_date": {
-          "description": "UTC date and time in the format 2017-01-25T00:00:00Z. Any data before this date will not be replicated. This field is optional - if not provided, all data will be replicated.",
-          "examples": [
-            "2017-01-25T00:00:00Z"
-          ],
-          "format": "date-time",
-          "order": 1,
-          "pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}Z$",
-          "title": "Start Date",
-          "type": "string"
-        }
-      },
-      "required": [
-        "api_key"
-      ],
-      "title": "Klaviyo Spec",
-      "type": "object"
-    },
-    "documentationUrl": "https://go.estuary.dev/JqH0gQ",
-    "protocol": 3032023,
-    "resourceConfigSchema": {
-      "additionalProperties": false,
-      "description": "ResourceConfig encodes a configured resource stream",
-      "properties": {
-        "cursorField": {
-          "items": {
-            "type": "string"
-          },
-          "title": "Cursor Field",
-          "type": "array"
-        },
-        "namespace": {
-          "description": "Enclosing schema namespace of this resource",
-          "title": "Namespace",
-          "type": "string"
-        },
-        "stream": {
-          "description": "Name of this stream",
-          "title": "Stream",
-          "type": "string"
-        },
-        "syncMode": {
-          "description": "Sync this resource incrementally, or fully refresh it every run",
-          "enum": [
-            "full_refresh",
-            "incremental"
-          ],
-          "title": "Sync Mode",
-          "type": "string"
-        }
-      },
-      "required": [
-        "stream",
-        "syncMode"
-      ],
-      "title": "ResourceConfig",
-      "type": "object"
-    },
-    "resourcePathPointers": [
-      "/namespace",
-      "/stream"
-    ]
-  }
-]
diff --git a/source-klaviyo/tests/test_streams.py b/source-klaviyo/tests/test_streams.py
index cbd6f4bc8b..625609d305 100644
--- a/source-klaviyo/tests/test_streams.py
+++ b/source-klaviyo/tests/test_streams.py
@@ -168,7 +168,7 @@ def test_cursor_field_is_required(self):
                 {"updated": "2023-01-01T00:00:00+00:00"},
                 {"page[cursor]": "aaA0aAo0aAA0AaAaAaa0AaaAAAaaA00AAAa0AA00A0AAAaAa"},
                 {
-                    "filter": "greater-than(updated,2023-01-01T00:00:00+00:00)",
+                    "filter": "greater-or-equal(updated,2023-01-01T00:00:00+00:00)",
                     "page[cursor]": "aaA0aAo0aAA0AaAaAaa0AaaAAAaaA00AAAa0AA00A0AAAaAa",
                     "sort": "updated",
                 },
@@ -178,7 +178,7 @@ def test_cursor_field_is_required(self):
                 None,
                 {"page[cursor]": "aaA0aAo0aAA0AaAaAaa0AaaAAAaaA00AAAa0AA00A0AAAaAa"},
                 {
-                    "filter": "greater-than(updated,2020-10-10T00:00:00+00:00)",
+                    "filter": "greater-or-equal(updated,2020-10-10T00:00:00+00:00)",
                     "page[cursor]": "aaA0aAo0aAA0AaAaAaa0AaaAAAaaA00AAAa0AA00A0AAAaAa",
                     "sort": "updated",
                 },
@@ -203,7 +203,7 @@ def test_cursor_field_is_required(self):
                 {"updated": "2023-01-01T00:00:00+00:00"},
                 {"page[cursor]": "aaA0aAo0aAA0AaAaAaa0AaaAAAaaA00AAAa0AA00A0AAAaAa"},
                 {
-                    "filter": "greater-than(updated,2023-01-01T00:00:00+00:00)",
+                    "filter": "greater-or-equal(updated,2023-01-01T00:00:00+00:00)",
                     "page[cursor]": "aaA0aAo0aAA0AaAaAaa0AaaAAAaaA00AAAa0AA00A0AAAaAa",
                     "sort": "updated",
                 },
@@ -504,17 +504,17 @@ class TestArchivedRecordsStream:
             (
                 {"archived": {"updated_at": "2023-10-10 00:00:00"}},
                 None,
-                {"filter": "and(greater-than(updated_at,2023-10-10T00:00:00+00:00),equals(archived,true))", "sort": "updated_at"},
+                {"filter": "and(greater-or-equal(updated_at,2023-10-10T00:00:00+00:00),equals(archived,true))", "sort": "updated_at"},
             ),
             (
                 {"archived": {"updated_at": "2023-10-10 00:00:00"}},
                 {
-                    "filter": "and(greater-than(updated_at,2023-10-10T00:00:00+00:00),equals(archived,true))",
+                    "filter": "and(greater-or-equal(updated_at,2023-10-10T00:00:00+00:00),equals(archived,true))",
                     "sort": "updated_at",
                     "page[cursor]": "next_page_cursor",
                 },
                 {
-                    "filter": "and(greater-than(updated_at,2023-10-10T00:00:00+00:00),equals(archived,true))",
+                    "filter": "and(greater-or-equal(updated_at,2023-10-10T00:00:00+00:00),equals(archived,true))",
                     "sort": "updated_at",
                     "page[cursor]": "next_page_cursor",
                 },
@@ -522,12 +522,12 @@ class TestArchivedRecordsStream:
             (
                 {},
                 {
-                    "filter": "and(greater-than(updated_at,2023-10-10T00:00:00+00:00),equals(archived,true))",
+                    "filter": "and(greater-or-equal(updated_at,2023-10-10T00:00:00+00:00),equals(archived,true))",
                     "sort": "updated_at",
                     "page[cursor]": "next_page_cursor",
                 },
                 {
-                    "filter": "and(greater-than(updated_at,2023-10-10T00:00:00+00:00),equals(archived,true))",
+                    "filter": "and(greater-or-equal(updated_at,2023-10-10T00:00:00+00:00),equals(archived,true))",
                     "sort": "updated_at",
                     "page[cursor]": "next_page_cursor",
                 },