diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fdb0945..5e892e4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,6 +28,6 @@ jobs:
       - name: Install pipenv
         run: curl https://raw.githubusercontent.com/pypa/pipenv/master/get-pipenv.py | python
       - name: Install dependencies
-        run: pipenv install
+        run: pipenv install --dev
       - name: Run tests
         run: (cd PyTest/; pipenv run pytest)
diff --git a/Pipfile b/Pipfile
index 247883f..6d730a9 100644
--- a/Pipfile
+++ b/Pipfile
@@ -12,10 +12,10 @@ pandas = "==0.23.4"
 openpyxl = "==2.6.1"
 jsonschema = "==3.0.0a4"
 urllib3 = "*"
-pytest = "*"
 xlrd = "==1.2.0"
 
 [dev-packages]
+pytest = "*"
 
 [requires]
 python_version = "3.7"
diff --git a/Pipfile.lock b/Pipfile.lock
index 8e0a9e1..75facc0 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "4e562b2c8d8e5824b86e90ced6a863600f78dabd67012022cee348f9094fe6a6"
+            "sha256": "75433b0703bb695bd3197955b5c4b11a0dbc54663a6c7abbc02ad34a426d2810"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -49,14 +49,6 @@
             "markers": "python_version >= '3.6'",
             "version": "==1.1.0"
         },
-        "exceptiongroup": {
-            "hashes": [
-                "sha256:5258b9ed329c5bbdd31a309f53cbfb0b155341807f6ff7606a1e801a891b29ad",
-                "sha256:a4785e48b045528f5bfe627b6ad554ff32def154f42372786903b7abcfe1aa16"
-            ],
-            "markers": "python_version < '3.11'",
-            "version": "==1.2.1"
-        },
         "graphviz": {
             "hashes": [
                 "sha256:0e1744a45b0d707bc44f99c7b8e5f25dc22cf96b6aaf2432ac308ed9822a9cb6",
@@ -73,14 +65,6 @@
             "markers": "python_version < '3.8'",
             "version": "==6.7.0"
         },
-        "iniconfig": {
-            "hashes": [
-                "sha256:2d91e135bf72d31a410b17c16da610a82cb55f6b0477d1a902134b24a455b8b3",
-                "sha256:b6a85871a79d2e3b22d2d1b94ac2824226a63c6b741c88f7ae975f18b6778374"
-            ],
-            "markers": "python_version >= '3.7'",
-            "version": "==2.0.0"
-        },
         "jdcal": {
             "hashes": [
                 "sha256:1abf1305fce18b4e8aa248cf8fe0c56ce2032392bc64bbd61b5dff2a19ec8bba",
@@ -276,14 +260,6 @@
             "index": "pypi",
             "version": "==2.6.1"
         },
-        "packaging": {
-            "hashes": [
-                "sha256:2ddfb553fdf02fb784c234c7ba6ccc288296ceabec964ad2eae3777778130bc5",
-                "sha256:eb82c5e3e56209074766e6885bb04b8c38a0c015d0a30036ebe7ece34c9989e9"
-            ],
-            "markers": "python_version >= '3.7'",
-            "version": "==24.0"
-        },
         "pandas": {
             "hashes": [
                 "sha256:11975fad9edbdb55f1a560d96f91830e83e29bed6ad5ebf506abda09818eaf60",
@@ -310,14 +286,6 @@
             "index": "pypi",
             "version": "==0.23.4"
         },
-        "pluggy": {
-            "hashes": [
-                "sha256:c2fd55a7d7a3863cba1a013e4e2414658b1d07b6bc57b3919e0c63c9abb99849",
-                "sha256:d12f0c4b579b15f5e054301bb226ee85eeeba08ffec228092f8defbaa3a4c4b3"
-            ],
-            "markers": "python_version >= '3.7'",
-            "version": "==1.2.0"
-        },
         "pydot": {
             "hashes": [
                 "sha256:67be714300c78fda5fd52f79ec994039e3f76f074948c67b5ff539b433ad354f",
@@ -367,14 +335,6 @@
             "markers": "python_version >= '3.7'",
             "version": "==0.19.3"
         },
-        "pytest": {
-            "hashes": [
-                "sha256:2cf0005922c6ace4a3e2ec8b4080eb0d9753fdc93107415332f50ce9e7994280",
-                "sha256:b090cdf5ed60bf4c45261be03239c2c1c22df034fbffe691abe93cd80cea01d8"
-            ],
-            "index": "pypi",
-            "version": "==7.4.4"
-        },
         "python-dateutil": {
             "hashes": [
                 "sha256:37dd54208da7e1cd875388217d5e00ebd4179249f90fb72437e91a35459a0ad3",
@@ -406,14 +366,6 @@
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==1.16.0"
         },
-        "tomli": {
-            "hashes": [
-                "sha256:939de3e7a6161af0c887ef91b7d41a53e7c5a1ca976325f429cb46ea9bc30ecc",
-                "sha256:de526c12914f0c550d15924c62d72abc48d6fe7364aa87328337a31007fe8a4f"
-            ],
-            "markers": "python_version < '3.11'",
-            "version": "==2.0.1"
-        },
         "typing-extensions": {
             "hashes": [
                 "sha256:440d5dd3af93b060174bf433bccd69b0babc3b15b1a8dca43789fd7f61514b36",
@@ -447,5 +399,78 @@
             "version": "==3.15.0"
         }
     },
-    "develop": {}
+    "develop": {
+        "exceptiongroup": {
+            "hashes": [
+                "sha256:5258b9ed329c5bbdd31a309f53cbfb0b155341807f6ff7606a1e801a891b29ad",
+                "sha256:a4785e48b045528f5bfe627b6ad554ff32def154f42372786903b7abcfe1aa16"
+            ],
+            "markers": "python_version < '3.11'",
+            "version": "==1.2.1"
+        },
+        "importlib-metadata": {
+            "hashes": [
+                "sha256:1aaf550d4f73e5d6783e7acb77aec43d49da8017410afae93822cc9cca98c4d4",
+                "sha256:cb52082e659e97afc5dac71e79de97d8681de3aa07ff18578330904a9d18e5b5"
+            ],
+            "markers": "python_version < '3.8'",
+            "version": "==6.7.0"
+        },
+        "iniconfig": {
+            "hashes": [
+                "sha256:2d91e135bf72d31a410b17c16da610a82cb55f6b0477d1a902134b24a455b8b3",
+                "sha256:b6a85871a79d2e3b22d2d1b94ac2824226a63c6b741c88f7ae975f18b6778374"
+            ],
+            "markers": "python_version >= '3.7'",
+            "version": "==2.0.0"
+        },
+        "packaging": {
+            "hashes": [
+                "sha256:2ddfb553fdf02fb784c234c7ba6ccc288296ceabec964ad2eae3777778130bc5",
+                "sha256:eb82c5e3e56209074766e6885bb04b8c38a0c015d0a30036ebe7ece34c9989e9"
+            ],
+            "markers": "python_version >= '3.7'",
+            "version": "==24.0"
+        },
+        "pluggy": {
+            "hashes": [
+                "sha256:c2fd55a7d7a3863cba1a013e4e2414658b1d07b6bc57b3919e0c63c9abb99849",
+                "sha256:d12f0c4b579b15f5e054301bb226ee85eeeba08ffec228092f8defbaa3a4c4b3"
+            ],
+            "markers": "python_version >= '3.7'",
+            "version": "==1.2.0"
+        },
+        "pytest": {
+            "hashes": [
+                "sha256:2cf0005922c6ace4a3e2ec8b4080eb0d9753fdc93107415332f50ce9e7994280",
+                "sha256:b090cdf5ed60bf4c45261be03239c2c1c22df034fbffe691abe93cd80cea01d8"
+            ],
+            "index": "pypi",
+            "version": "==7.4.4"
+        },
+        "tomli": {
+            "hashes": [
+                "sha256:939de3e7a6161af0c887ef91b7d41a53e7c5a1ca976325f429cb46ea9bc30ecc",
+                "sha256:de526c12914f0c550d15924c62d72abc48d6fe7364aa87328337a31007fe8a4f"
+            ],
+            "markers": "python_version < '3.11'",
+            "version": "==2.0.1"
+        },
+        "typing-extensions": {
+            "hashes": [
+                "sha256:440d5dd3af93b060174bf433bccd69b0babc3b15b1a8dca43789fd7f61514b36",
+                "sha256:b75ddc264f0ba5615db7ba217daeb99701ad295353c45f9e95963337ceeeffb2"
+            ],
+            "markers": "python_version < '3.8'",
+            "version": "==4.7.1"
+        },
+        "zipp": {
+            "hashes": [
+                "sha256:112929ad649da941c23de50f356a2b5570c954b65150642bccdd66bf194d224b",
+                "sha256:48904fc76a60e542af151aded95726c1a5c34ed43ab4134b597665c86d7ad556"
+            ],
+            "markers": "python_version >= '3.7'",
+            "version": "==3.15.0"
+        }
+    }
 }