diff --git a/cmake/CMakeBuild/bin/cmake.py b/cmake/CMakeBuild/bin/cmake.py
index f913176873dbed9c014ebe2b9735ee0357ca3b7a..26a4872831a9f3613017d824f10b46c83e3062c4 100755
--- a/cmake/CMakeBuild/bin/cmake.py
+++ b/cmake/CMakeBuild/bin/cmake.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/python3
 #
 # cmake.py
 #
diff --git a/cmake/CMakeBuild/bin/cmake_docutil.py b/cmake/CMakeBuild/bin/cmake_docutil.py
index fce08866ab83bbd7410f4a2c43e3cbea905390f5..0c7427fc5bfbcc6753fc7b09c29c7d4bf3b564b3 100755
--- a/cmake/CMakeBuild/bin/cmake_docutil.py
+++ b/cmake/CMakeBuild/bin/cmake_docutil.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/python3
 #
 # cmake_docutil.py
 #
diff --git a/cmake/CMakeBuild/bin/cmakebuild_update.py b/cmake/CMakeBuild/bin/cmakebuild_update.py
index 3e3a9119bbcf9f8bac2b28b39ed643886e2cd3a5..fd0c0dcbf28a697fd89c38018f4c1ffa381336c5 100755
--- a/cmake/CMakeBuild/bin/cmakebuild_update.py
+++ b/cmake/CMakeBuild/bin/cmakebuild_update.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/python3
 #
 # cmakebuild_update.py
 #