diff --git a/bin/clang-tidy-diff.py b/bin/clang-tidy-diff.py
index 45c7b015..c6e47e1c 100755
--- a/bin/clang-tidy-diff.py
+++ b/bin/clang-tidy-diff.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 #===- clang-tidy-diff.py - ClangTidy Diff Checker ------------*- python -*--===#
 #
diff --git a/bin/run-clang-format.py b/bin/run-clang-format.py
index ab628601..4c795b66 100755
--- a/bin/run-clang-format.py
+++ b/bin/run-clang-format.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 """A wrapper script around clang-format, suitable for linting multiple files
 and to use for continuous integration.