diff --git a/sdk/pyproject.toml b/sdk/pyproject.toml
index 4d5c2520..453b9e18 100644
--- a/sdk/pyproject.toml
+++ b/sdk/pyproject.toml
@@ -43,7 +43,7 @@ dependencies = [
 
 [project.optional-dependencies]
 dev = [
-    "mypy",
+    "mypy==1.15.0",
     "pycodestyle",
     "codeblocks",
     "coverage",