diff --git a/python-modules/cis_aws/setup.py b/python-modules/cis_aws/setup.py
index 82f3cbef..b059c173 100644
--- a/python-modules/cis_aws/setup.py
+++ b/python-modules/cis_aws/setup.py
@@ -10,8 +10,8 @@
 
 setup_requirements = ["pytest-runner", "setuptools>=40.5.0"]
 
-test_requirements = ["jsonschema", "mock", "moto[dynamodb2,kinesis,sts]<2", "pytest", "pytest-watch", "pytest-cov",
-                     "flake8", "botocore<1.23.24", "responses<0.12.1"]
+test_requirements = ["jsonschema", "mock<=4.0.2", "moto[dynamodb2,kinesis,sts]<2", "pytest", "pytest-watch",
+                     "pytest-cov", "flake8", "botocore<1.23.24", "responses<0.12.1"]
 
 extras = {"test": test_requirements}
 
diff --git a/python-modules/cis_change_service/setup.py b/python-modules/cis_change_service/setup.py
index 64bb0a97..828a3ca8 100644
--- a/python-modules/cis_change_service/setup.py
+++ b/python-modules/cis_change_service/setup.py
@@ -23,8 +23,8 @@
 
 setup_requirements = ["pytest-runner", "setuptools>=40.5.0"]
 
-test_requirements = ["pytest", "pytest-watch", "pytest-cov", "patch", "mock", "flake8", "moto<2", "botocore<1.23.24",
-                     "responses<0.12.1"]
+test_requirements = ["pytest", "pytest-watch", "pytest-cov", "patch", "mock<=4.0.2", "flake8", "moto<2",
+                     "botocore<1.23.24", "responses<0.12.1"]
 
 extras = {"test": test_requirements}
 
diff --git a/python-modules/cis_crypto/setup.py b/python-modules/cis_crypto/setup.py
index 236143e3..d44cc1cb 100644
--- a/python-modules/cis_crypto/setup.py
+++ b/python-modules/cis_crypto/setup.py
@@ -21,7 +21,7 @@
 
 setup_requirements = ["pytest-runner", "setuptools>=40.5.0"]
 
-test_requirements = ["pytest", "pytest-watch", "pytest-cov", "pytest-mock", "moto[ssm]<2", "mock", "flake8",
+test_requirements = ["pytest", "pytest-watch", "pytest-cov", "pytest-mock", "moto[ssm]<2", "mock<=4.0.2", "flake8",
                      "cis_profile", "botocore<1.23.24", "responses<0.12.1"]
 
 extras = {"test": test_requirements}
diff --git a/python-modules/cis_identity_vault/setup.py b/python-modules/cis_identity_vault/setup.py
index cdf3f899..89857268 100644
--- a/python-modules/cis_identity_vault/setup.py
+++ b/python-modules/cis_identity_vault/setup.py
@@ -28,7 +28,7 @@
     "pytest-watch",
     "pytest-cov",
     "patch",
-    "mock",
+    "mock<=4.0.2",
     "moto[dynamodb2,ssm]>=1.3.7,<2",
     "flake8",
     "pytest-benchmark",
diff --git a/python-modules/cis_notifications/setup.py b/python-modules/cis_notifications/setup.py
index 4ed341b8..ac624daa 100644
--- a/python-modules/cis_notifications/setup.py
+++ b/python-modules/cis_notifications/setup.py
@@ -10,8 +10,8 @@
 
 setup_requirements = ["pytest-runner", "setuptools>=40.5.0"]
 
-test_requirements = ["pytest", "pytest-watch", "pytest-cov", "patch", "mock", "flake8", "moto[secretsmanager,ssm]<2",
-                     "PyYAML", "botocore<1.23.24", "responses<0.12.1"]
+test_requirements = ["pytest", "pytest-watch", "pytest-cov", "patch", "mock<=4.0.2", "flake8",
+                     "moto[secretsmanager,ssm]<2", "PyYAML", "botocore<1.23.24", "responses<0.12.1"]
 
 extras = {"test": test_requirements}
 
diff --git a/python-modules/cis_postgresql/setup.py b/python-modules/cis_postgresql/setup.py
index 84b65468..89691c7b 100644
--- a/python-modules/cis_postgresql/setup.py
+++ b/python-modules/cis_postgresql/setup.py
@@ -15,8 +15,8 @@
     "pytest-watch",
     "pytest-cov",
     "patch",
-    "mock",
     "flake8",
+    "mock<=4.0.2",
     "moto[dynamodb2]<2",
     "docker",
     "psycopg2",
diff --git a/python-modules/cis_processor/setup.py b/python-modules/cis_processor/setup.py
index 454f8485..e4c5441f 100644
--- a/python-modules/cis_processor/setup.py
+++ b/python-modules/cis_processor/setup.py
@@ -10,7 +10,7 @@
 
 setup_requirements = ["pytest-runner", "setuptools>=40.5.0"]
 
-test_requirements = ["pytest", "pytest-watch", "pytest-cov", "patch", "mock", "flake8", "moto[dynamodb2]<2",
+test_requirements = ["pytest", "pytest-watch", "pytest-cov", "patch", "mock<=4.0.2", "flake8", "moto[dynamodb2]<2",
                      "botocore<1.23.24", "responses<0.12.1"]
 
 extras = {"test": test_requirements}
diff --git a/python-modules/cis_profile/setup.py b/python-modules/cis_profile/setup.py
index cc7ebfe4..9a091be7 100644
--- a/python-modules/cis_profile/setup.py
+++ b/python-modules/cis_profile/setup.py
@@ -5,7 +5,7 @@
 
 requirements = ["jsonschema", "requests", "graphene", "Faker", "everett", "everett[ini]", "configobj", "click"]
 test_requirements = [
-    "mock",
+    "mock<=4.0.2",
     "pytest",
     "pytest-watch",
     "pytest-cov",
diff --git a/python-modules/cis_profile_retrieval_service/setup.py b/python-modules/cis_profile_retrieval_service/setup.py
index b0c9b962..4c6e0e38 100644
--- a/python-modules/cis_profile_retrieval_service/setup.py
+++ b/python-modules/cis_profile_retrieval_service/setup.py
@@ -29,7 +29,7 @@
 
 setup_requirements = ["pytest-runner", "setuptools>=40.5.0"]
 
-test_requirements = ["pytest", "pytest-watch", "pytest-cov", "pytest-mock", "moto<2", "mock", "flake8",
+test_requirements = ["pytest", "pytest-watch", "pytest-cov", "pytest-mock", "moto<2", "mock<=4.0.2", "flake8",
                      "botocore<1.23.24", "responses<0.12.1"]
 
 extras = {"test": test_requirements}
diff --git a/python-modules/cis_publisher/setup.py b/python-modules/cis_publisher/setup.py
index 3b0594e2..1d073b65 100644
--- a/python-modules/cis_publisher/setup.py
+++ b/python-modules/cis_publisher/setup.py
@@ -10,7 +10,7 @@
 
 setup_requirements = ["pytest-runner"]
 
-test_requirements = ["pytest", "pytest-watch", "pytest-cov", "moto[lambda,ssm]<2", "flake8", "mock",
+test_requirements = ["pytest", "pytest-watch", "pytest-cov", "moto[lambda,ssm]<2", "flake8", "mock<=4.0.2",
                      "botocore<1.23.24", "responses<0.12.1"]
 
 extras = {"test": test_requirements}