diff --git a/pyproject.toml b/pyproject.toml
index b0357f246..3b8424791 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -48,7 +48,7 @@ Issues = "https://github.com/atlanhq/atlan-python/issues"
 
 [project.optional-dependencies]
 dev = [
-    "mypy~=1.9.0",
+    "mypy>=1.9,<1.17",
     "ruff~=0.9.9",
     "types-requests~=2.31.0.6",
     "types-setuptools~=75.8.0.20250110",
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 3d25f0c2c..28d90611a 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,4 @@
-mypy~=1.9.0
+mypy>=1.9,<1.17
 ruff~=0.9.9
 # [PINNED] for Python 3.8 compatibility
 # higher versions require urllib3>=2.0