diff --git a/examples/browser_summarizer/pubspec.lock b/examples/browser_summarizer/pubspec.lock
index cda7e771..da08ad5c 100644
--- a/examples/browser_summarizer/pubspec.lock
+++ b/examples/browser_summarizer/pubspec.lock
@@ -518,10 +518,10 @@ packages:
     dependency: transitive
     description:
       name: uuid
-      sha256: "83d37c7ad7aaf9aa8e275490669535c8080377cfa7a7004c24dfac53afffaa90"
+      sha256: a5be9ef6618a7ac1e964353ef476418026db906c4facdedaa299b7a2e71690ff
       url: "https://pub.dev"
     source: hosted
-    version: "4.4.2"
+    version: "4.5.1"
   vector_math:
     dependency: transitive
     description:
diff --git a/examples/docs_examples/pubspec.lock b/examples/docs_examples/pubspec.lock
index 350d8700..66c2a609 100644
--- a/examples/docs_examples/pubspec.lock
+++ b/examples/docs_examples/pubspec.lock
@@ -446,10 +446,10 @@ packages:
     dependency: transitive
     description:
       name: uuid
-      sha256: "83d37c7ad7aaf9aa8e275490669535c8080377cfa7a7004c24dfac53afffaa90"
+      sha256: a5be9ef6618a7ac1e964353ef476418026db906c4facdedaa299b7a2e71690ff
       url: "https://pub.dev"
     source: hosted
-    version: "4.4.2"
+    version: "4.5.1"
   vector_math:
     dependency: transitive
     description:
diff --git a/examples/hello_world_backend/pubspec.lock b/examples/hello_world_backend/pubspec.lock
index 58f549a5..283add6f 100644
--- a/examples/hello_world_backend/pubspec.lock
+++ b/examples/hello_world_backend/pubspec.lock
@@ -241,10 +241,10 @@ packages:
     dependency: transitive
     description:
       name: uuid
-      sha256: "83d37c7ad7aaf9aa8e275490669535c8080377cfa7a7004c24dfac53afffaa90"
+      sha256: a5be9ef6618a7ac1e964353ef476418026db906c4facdedaa299b7a2e71690ff
       url: "https://pub.dev"
     source: hosted
-    version: "4.4.2"
+    version: "4.5.1"
   web:
     dependency: transitive
     description:
diff --git a/examples/hello_world_cli/pubspec.lock b/examples/hello_world_cli/pubspec.lock
index 93450e1c..362c4485 100644
--- a/examples/hello_world_cli/pubspec.lock
+++ b/examples/hello_world_cli/pubspec.lock
@@ -201,10 +201,10 @@ packages:
     dependency: transitive
     description:
       name: uuid
-      sha256: "83d37c7ad7aaf9aa8e275490669535c8080377cfa7a7004c24dfac53afffaa90"
+      sha256: a5be9ef6618a7ac1e964353ef476418026db906c4facdedaa299b7a2e71690ff
       url: "https://pub.dev"
     source: hosted
-    version: "4.4.2"
+    version: "4.5.1"
   web:
     dependency: transitive
     description:
diff --git a/examples/hello_world_flutter/pubspec.lock b/examples/hello_world_flutter/pubspec.lock
index cfc3475e..f7ee62c4 100644
--- a/examples/hello_world_flutter/pubspec.lock
+++ b/examples/hello_world_flutter/pubspec.lock
@@ -374,10 +374,10 @@ packages:
     dependency: transitive
     description:
       name: uuid
-      sha256: "83d37c7ad7aaf9aa8e275490669535c8080377cfa7a7004c24dfac53afffaa90"
+      sha256: a5be9ef6618a7ac1e964353ef476418026db906c4facdedaa299b7a2e71690ff
       url: "https://pub.dev"
     source: hosted
-    version: "4.4.2"
+    version: "4.5.1"
   vector_math:
     dependency: transitive
     description:
diff --git a/examples/wikivoyage_eu/pubspec.lock b/examples/wikivoyage_eu/pubspec.lock
index 82120202..7abf253f 100644
--- a/examples/wikivoyage_eu/pubspec.lock
+++ b/examples/wikivoyage_eu/pubspec.lock
@@ -319,10 +319,10 @@ packages:
     dependency: transitive
     description:
       name: uuid
-      sha256: "83d37c7ad7aaf9aa8e275490669535c8080377cfa7a7004c24dfac53afffaa90"
+      sha256: a5be9ef6618a7ac1e964353ef476418026db906c4facdedaa299b7a2e71690ff
       url: "https://pub.dev"
     source: hosted
-    version: "4.4.2"
+    version: "4.5.1"
   vector_math:
     dependency: transitive
     description:
diff --git a/melos.yaml b/melos.yaml
index ff6f52ba..96d44214 100644
--- a/melos.yaml
+++ b/melos.yaml
@@ -59,7 +59,7 @@ command:
       shelf: ^1.4.2
       shelf_router: ^1.1.4
       supabase: ^2.2.7
-      uuid: ^4.4.2
+      uuid: ^4.5.1
       web_socket_channel: ^3.0.1
     dev_dependencies:
       build_runner: ^2.4.11
diff --git a/packages/langchain/lib/src/embeddings/cache.dart b/packages/langchain/lib/src/embeddings/cache.dart
index 3a67cd39..d44c0935 100644
--- a/packages/langchain/lib/src/embeddings/cache.dart
+++ b/packages/langchain/lib/src/embeddings/cache.dart
@@ -135,7 +135,7 @@ class EmbeddingsByteStoreEncoder
   @override
   String encodeKey(final String key) {
     final keyHash = sha1.convert(utf8.encode(key)).toString();
-    return uuid.v5(Namespace.URL, keyHash);
+    return uuid.v5(Namespace.url.value, keyHash);
   }
 
   @override
diff --git a/packages/langchain/pubspec.yaml b/packages/langchain/pubspec.yaml
index 872d9b5c..72d66037 100644
--- a/packages/langchain/pubspec.yaml
+++ b/packages/langchain/pubspec.yaml
@@ -21,7 +21,7 @@ dependencies:
   crypto: ^3.0.3
   langchain_core: 0.3.6
   meta: ^1.11.0
-  uuid: ^4.4.2
+  uuid: ^4.5.1
 
 dev_dependencies:
   test: ^1.25.8
diff --git a/packages/langchain/test/embeddings/cache.dart b/packages/langchain/test/embeddings/cache.dart
index c29f4e41..d9924cb3 100644
--- a/packages/langchain/test/embeddings/cache.dart
+++ b/packages/langchain/test/embeddings/cache.dart
@@ -91,7 +91,7 @@ void main() async {
     const uuid = Uuid();
     const key = 'key';
     final keyHash = sha1.convert(utf8.encode(key)).toString();
-    final expectedEncodedKey = uuid.v5(Uuid.NAMESPACE_URL, keyHash);
+    final expectedEncodedKey = uuid.v5(Namespace.url.value, keyHash);
     final value = [0.1, 0.2, 0.3];
     final expectedEncodedValue =
         Uint8List.fromList(utf8.encode(json.encode(value)));
diff --git a/packages/langchain_chroma/pubspec.yaml b/packages/langchain_chroma/pubspec.yaml
index 95e99fad..a8425fb2 100644
--- a/packages/langchain_chroma/pubspec.yaml
+++ b/packages/langchain_chroma/pubspec.yaml
@@ -21,7 +21,7 @@ dependencies:
   http: ^1.2.2
   langchain_core: 0.3.6
   meta: ^1.11.0
-  uuid: ^4.4.2
+  uuid: ^4.5.1
 
 dev_dependencies:
   test: ^1.25.8
diff --git a/packages/langchain_community/pubspec.yaml b/packages/langchain_community/pubspec.yaml
index d92f94a9..4c034c34 100644
--- a/packages/langchain_community/pubspec.yaml
+++ b/packages/langchain_community/pubspec.yaml
@@ -27,7 +27,7 @@ dependencies:
   meta: ^1.11.0
   objectbox: ^4.0.1
   tavily_dart: ^0.1.0
-  uuid: ^4.4.2
+  uuid: ^4.5.1
 
 dev_dependencies:
   build_runner: ^2.4.11
diff --git a/packages/langchain_firebase/example/pubspec.lock b/packages/langchain_firebase/example/pubspec.lock
index 4cec2b94..8db2e2c6 100644
--- a/packages/langchain_firebase/example/pubspec.lock
+++ b/packages/langchain_firebase/example/pubspec.lock
@@ -414,10 +414,10 @@ packages:
     dependency: transitive
     description:
       name: uuid
-      sha256: "83d37c7ad7aaf9aa8e275490669535c8080377cfa7a7004c24dfac53afffaa90"
+      sha256: a5be9ef6618a7ac1e964353ef476418026db906c4facdedaa299b7a2e71690ff
       url: "https://pub.dev"
     source: hosted
-    version: "4.4.2"
+    version: "4.5.1"
   vector_math:
     dependency: transitive
     description:
diff --git a/packages/langchain_firebase/pubspec.lock b/packages/langchain_firebase/pubspec.lock
index 2300463c..54681afe 100644
--- a/packages/langchain_firebase/pubspec.lock
+++ b/packages/langchain_firebase/pubspec.lock
@@ -352,10 +352,10 @@ packages:
     dependency: "direct main"
     description:
       name: uuid
-      sha256: "83d37c7ad7aaf9aa8e275490669535c8080377cfa7a7004c24dfac53afffaa90"
+      sha256: a5be9ef6618a7ac1e964353ef476418026db906c4facdedaa299b7a2e71690ff
       url: "https://pub.dev"
     source: hosted
-    version: "4.4.2"
+    version: "4.5.1"
   vector_math:
     dependency: transitive
     description:
diff --git a/packages/langchain_firebase/pubspec.yaml b/packages/langchain_firebase/pubspec.yaml
index 74f496b2..6d3f52b6 100644
--- a/packages/langchain_firebase/pubspec.yaml
+++ b/packages/langchain_firebase/pubspec.yaml
@@ -25,7 +25,7 @@ dependencies:
   firebase_vertexai: ^0.2.2
   langchain_core: 0.3.6
   meta: ^1.11.0
-  uuid: ^4.4.2
+  uuid: ^4.5.1
 
 dev_dependencies:
   flutter_test:
diff --git a/packages/langchain_google/pubspec.yaml b/packages/langchain_google/pubspec.yaml
index 514fdbe9..9754ef41 100644
--- a/packages/langchain_google/pubspec.yaml
+++ b/packages/langchain_google/pubspec.yaml
@@ -26,7 +26,7 @@ dependencies:
   http: ^1.2.2
   langchain_core: 0.3.6
   meta: ^1.11.0
-  uuid: ^4.4.2
+  uuid: ^4.5.1
   vertex_ai: ^0.1.0+2
 
 dev_dependencies:
diff --git a/packages/langchain_ollama/pubspec.yaml b/packages/langchain_ollama/pubspec.yaml
index eb2c1fc8..6b266c7a 100644
--- a/packages/langchain_ollama/pubspec.yaml
+++ b/packages/langchain_ollama/pubspec.yaml
@@ -23,7 +23,7 @@ dependencies:
   langchain_tiktoken: ^1.0.1
   meta: ^1.11.0
   ollama_dart: ^0.2.2
-  uuid: ^4.4.2
+  uuid: ^4.5.1
 
 dev_dependencies:
   test: ^1.25.8
diff --git a/packages/langchain_openai/pubspec.yaml b/packages/langchain_openai/pubspec.yaml
index 869b3cce..2f6b5467 100644
--- a/packages/langchain_openai/pubspec.yaml
+++ b/packages/langchain_openai/pubspec.yaml
@@ -23,7 +23,7 @@ dependencies:
   langchain_tiktoken: ^1.0.1
   meta: ^1.11.0
   openai_dart: ^0.4.2+1
-  uuid: ^4.4.2
+  uuid: ^4.5.1
 
 dev_dependencies:
   langchain: ^0.7.7
diff --git a/packages/langchain_pinecone/pubspec.yaml b/packages/langchain_pinecone/pubspec.yaml
index 96da57c1..80e58ced 100644
--- a/packages/langchain_pinecone/pubspec.yaml
+++ b/packages/langchain_pinecone/pubspec.yaml
@@ -21,7 +21,7 @@ dependencies:
   langchain_core: 0.3.6
   meta: ^1.11.0
   pinecone: ^0.7.2
-  uuid: ^4.4.2
+  uuid: ^4.5.1
 
 dev_dependencies:
   test: ^1.25.8