diff --git a/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-custom-build/requirements.txt b/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-custom-build/requirements.txt
index c3af4b0ab2cf5..15d2daf9bb55d 100644
--- a/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-custom-build/requirements.txt
+++ b/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-custom-build/requirements.txt
@@ -2,6 +2,6 @@
 certifi==2024.7.4
 chardet==3.0.4
 idna==3.7
-urllib3==2.6.0
+urllib3==2.6.3
 # Requests used by this lambda
 requests==2.32.4
diff --git a/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-dockercopy/Pipfile.lock b/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-dockercopy/Pipfile.lock
index 326877b3cc801..5cc510f6e1b9c 100644
--- a/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-dockercopy/Pipfile.lock
+++ b/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-dockercopy/Pipfile.lock
@@ -139,12 +139,12 @@
         },
         "urllib3": {
             "hashes": [
-                "sha256:c90f7a39f716c572c4e3e58509581ebd83f9b59cced005b7db7ad2d22b0db99f",
-                "sha256:cb9bcef5a4b345d5da5d145dc3e30834f58e8018828cbc724d30b4cb7d4d49f1"
+                "sha256:1b62b6884944a57dbe321509ab94fd4d3b307075e0c2eae991ac71ee15ad38ed",
+                "sha256:bf272323e553dfb2e87d9bfd225ca7b0f467b919d7bbd355436d3fd37cb0acd4"
             ],
             "index": "pypi",
             "markers": "python_version >= '3.9'",
-            "version": "==2.6.0"
+            "version": "==2.6.3"
         }
     },
     "develop": {}
diff --git a/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-pipenv/Pipfile.lock b/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-pipenv/Pipfile.lock
index 326877b3cc801..5cc510f6e1b9c 100644
--- a/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-pipenv/Pipfile.lock
+++ b/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-pipenv/Pipfile.lock
@@ -139,12 +139,12 @@
         },
         "urllib3": {
             "hashes": [
-                "sha256:c90f7a39f716c572c4e3e58509581ebd83f9b59cced005b7db7ad2d22b0db99f",
-                "sha256:cb9bcef5a4b345d5da5d145dc3e30834f58e8018828cbc724d30b4cb7d4d49f1"
+                "sha256:1b62b6884944a57dbe321509ab94fd4d3b307075e0c2eae991ac71ee15ad38ed",
+                "sha256:bf272323e553dfb2e87d9bfd225ca7b0f467b919d7bbd355436d3fd37cb0acd4"
             ],
             "index": "pypi",
             "markers": "python_version >= '3.9'",
-            "version": "==2.6.0"
+            "version": "==2.6.3"
         }
     },
     "develop": {}
diff --git a/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-poetry/poetry.lock b/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-poetry/poetry.lock
index 29ee9fea1d486..d3bc862f3b291 100644
--- a/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-poetry/poetry.lock
+++ b/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-poetry/poetry.lock
@@ -153,14 +153,14 @@ use-chardet-on-py3 = ["chardet (>=3.0.2,<6)"]
 
 [[package]]
 name = "urllib3"
-version = "2.6.0"
+version = "2.6.3"
 description = "HTTP library with thread-safe connection pooling, file post, and more."
 optional = false
 python-versions = ">=3.9"
 groups = ["main"]
 files = [
-    {file = "urllib3-2.6.0-py3-none-any.whl", hash = "sha256:c90f7a39f716c572c4e3e58509581ebd83f9b59cced005b7db7ad2d22b0db99f"},
-    {file = "urllib3-2.6.0.tar.gz", hash = "sha256:cb9bcef5a4b345d5da5d145dc3e30834f58e8018828cbc724d30b4cb7d4d49f1"},
+    {file = "urllib3-2.6.3-py3-none-any.whl", hash = "sha256:bf272323e553dfb2e87d9bfd225ca7b0f467b919d7bbd355436d3fd37cb0acd4"},
+    {file = "urllib3-2.6.3.tar.gz", hash = "sha256:1b62b6884944a57dbe321509ab94fd4d3b307075e0c2eae991ac71ee15ad38ed"},
 ]
 
 [package.extras]
diff --git a/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-project/lambda/requirements.txt b/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-project/lambda/requirements.txt
index c3af4b0ab2cf5..15d2daf9bb55d 100644
--- a/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-project/lambda/requirements.txt
+++ b/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-project/lambda/requirements.txt
@@ -2,6 +2,6 @@
 certifi==2024.7.4
 chardet==3.0.4
 idna==3.7
-urllib3==2.6.0
+urllib3==2.6.3
 # Requests used by this lambda
 requests==2.32.4
diff --git a/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-project/shared/requirements.txt b/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-project/shared/requirements.txt
index 6a3cd2d318f3a..161f44955cddf 100644
--- a/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-project/shared/requirements.txt
+++ b/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler-project/shared/requirements.txt
@@ -2,5 +2,5 @@
 certifi==2024.7.4
 chardet==3.0.4
 idna==3.7
-urllib3==2.6.0
+urllib3==2.6.3
 # Requests used by this lambda
diff --git a/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler/requirements.txt b/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler/requirements.txt
index c3af4b0ab2cf5..15d2daf9bb55d 100644
--- a/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler/requirements.txt
+++ b/packages/@aws-cdk/aws-lambda-python-alpha/test/lambda-handler/requirements.txt
@@ -2,6 +2,6 @@
 certifi==2024.7.4
 chardet==3.0.4
 idna==3.7
-urllib3==2.6.0
+urllib3==2.6.3
 # Requests used by this lambda
 requests==2.32.4