diff --git a/pact-python-cli/pyproject.toml b/pact-python-cli/pyproject.toml
index 0f29d03bc..7cac9a70f 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==0.15.8", { include-group = "test" }, { include-group = "types" }]
 test  = ["pytest-cov~=7.0", "pytest~=9.0"]
-types = ["mypy==1.19.1"]
+types = ["mypy==1.20.0"]
 
 ################################################################################
 ## Build System
diff --git a/pact-python-ffi/pyproject.toml b/pact-python-ffi/pyproject.toml
index 3b325c25d..07a44788f 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==0.15.8", { include-group = "test" }, { include-group = "types" }]
 test  = ["pytest-cov~=7.0", "pytest~=9.0"]
-types = ["mypy==1.19.1", "typing-extensions~=4.0"]
+types = ["mypy==1.20.0", "typing-extensions~=4.0"]
 
 ################################################################################
 ## Build System
diff --git a/pyproject.toml b/pyproject.toml
index f747331a7..86bed9479 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -123,7 +123,7 @@ test = [
   "testcontainers~=4.0",
 ]
 types = [
-  "mypy==1.19.1",
+  "mypy==1.20.0",
   "types-grpcio~=1.0",
   "types-protobuf~=6.0",
   "types-requests~=2.0",