diff --git a/test/common.py b/test/common.py
index 1f428f70add7a..7a7ce0949fad0 100644
--- a/test/common.py
+++ b/test/common.py
@@ -1540,7 +1540,7 @@ def build_library(name,
     # cross compiling.
     if configure:
       if configure[0] == 'cmake':
-        configure = [EMCMAKE] + configure
+        configure = [EMCMAKE '-DCMAKE_POLICY_VERSION_MINIMUM=3.5'] + configure
       else:
         configure = [EMCONFIGURE] + configure
     else:
diff --git a/test/test_other.py b/test/test_other.py
index 8071cf2d4f875..6a89af3d62303 100644
--- a/test/test_other.py
+++ b/test/test_other.py
@@ -931,7 +931,7 @@ def test_cmake(self, test_dir, output_file, cmake_args):
       os.mkdir(builddir)
       with common.chdir(builddir):
         # Run Cmake
-        cmd = [EMCMAKE, 'cmake'] + cmake_args + ['-G', generator, cmakelistsdir]
+        cmd = [EMCMAKE, 'cmake'] + cmake_args + ['-G', generator, cmakelistsdir, '-DCMAKE_POLICY_VERSION_MINIMUM=3.5']
 
         env = os.environ.copy()
         # https://github.com/emscripten-core/emscripten/pull/5145: Check that CMake works even if EMCC_SKIP_SANITY_CHECK=1 is passed.