diff --git a/pact-python-cli/pyproject.toml b/pact-python-cli/pyproject.toml
index 3d8af71e7..3489f31e8 100644
--- a/pact-python-cli/pyproject.toml
+++ b/pact-python-cli/pyproject.toml
@@ -56,7 +56,7 @@ requires-python = ">=3.10"
 # developper consistency. All other dependencies are as above.
 dev = ["ruff==0.16.2", { include-group = "test" }, { include-group = "types" }]
 test = ["pytest~=9.0", "pytest-cov~=7.0"]
-types = ["mypy==2.3.0"]
+types = ["mypy==2.3.1"]
 
 ## Build System
 [build-system]
diff --git a/pact-python-ffi/pyproject.toml b/pact-python-ffi/pyproject.toml
index 99772acfe..a4fbc8ac7 100644
--- a/pact-python-ffi/pyproject.toml
+++ b/pact-python-ffi/pyproject.toml
@@ -43,7 +43,7 @@ dependencies = ["cffi~=2.0"]
 [dependency-groups]
 dev = ["ruff==0.16.2", { include-group = "test" }, { include-group = "types" }]
 test = ["pytest~=9.0", "pytest-cov~=7.0"]
-types = ["mypy==2.3.0", "typing-extensions~=4.0"]
+types = ["mypy==2.3.1", "typing-extensions~=4.0"]
 
 [build-system]
 requires = ["cffi", "hatchling", "packaging", "setuptools"]
diff --git a/pyproject.toml b/pyproject.toml
index 75d176e07..9af93dffc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -123,7 +123,7 @@ test = [
   "testcontainers~=4.0",
 ]
 types = [
-  "mypy==2.3.0",
+  "mypy==2.3.1",
   "types-grpcio~=1.0",
   "types-protobuf~=7.34",
   "types-requests~=2.0",