diff --git a/test/common.py b/test/common.py
index 613d0fcff75a3..6e9cbc94b3ef7 100644
--- a/test/common.py
+++ b/test/common.py
@@ -1571,7 +1571,9 @@ def build_library(self, name, build_dir, generated_libs, configure, make, make_a
       # cross compiling.
       if configure:
         if configure[0] == 'cmake':
-          configure = [EMCMAKE] + configure
+          # Some tests have very old cmake_minimum_version settings which is not supported by cmake 4+.
+          # Forcing a slighly more recent cmake_minimum_version works around this issue.
+          configure = [EMCMAKE] + configure + ['-DCMAKE_POLICY_VERSION_MINIMUM=3.5']
         else:
           configure = [EMCONFIGURE] + configure
       else:
diff --git a/test/test_other.py b/test/test_other.py
index 46637386f834b..843daed807e40 100644
--- a/test/test_other.py
+++ b/test/test_other.py
@@ -945,7 +945,10 @@ 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]
+
+        # Some tests have very old cmake_minimum_version settings which is not supported by cmake 4+.
+        # Forcing a slighly more recent cmake_minimum_version works around this issue.
+        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.