diff --git a/lang/py/build.sh b/lang/py/build.sh
index 9850548955c..398d81d4d94 100755
--- a/lang/py/build.sh
+++ b/lang/py/build.sh
@@ -58,11 +58,11 @@ interop-data-test() {
 }
 
 lint() {
-  uvx ruff check .
+  uv run ruff check .
 }
 
 format() {
-  uvx ruff format --diff .
+  uv run ruff format --diff .
 }
 
 test_() {
diff --git a/lang/py/uv.lock b/lang/py/uv.lock
index 24bfbb9db28..d8d752c6745 100644
--- a/lang/py/uv.lock
+++ b/lang/py/uv.lock
@@ -52,7 +52,7 @@ provides-extras = ["snappy", "zstandard"]
 [package.metadata.requires-dev]
 dev = [
     { name = "coverage", specifier = ">=7.13.4" },
-    { name = "mypy", specifier = "<2.1.0" },
+    { name = "mypy", specifier = "<2.4.0" },
     { name = "python-snappy", specifier = ">=0.7.3" },
     { name = "ruff", specifier = ">=0.15.1" },
     { name = "setuptools", specifier = ">=82.0.0" },