diff --git a/coin/provisioning/common/unix/install_grpc.sh b/coin/provisioning/common/unix/install_grpc.sh
index 3b94816a..57d54f8a 100755
--- a/coin/provisioning/common/unix/install_grpc.sh
+++ b/coin/provisioning/common/unix/install_grpc.sh
@@ -63,6 +63,7 @@ cmake "$targetDir" -G"Ninja Multi-Config" \
     -DCMAKE_POSITION_INDEPENDENT_CODE=ON \
     -DCMAKE_CONFIGURATION_TYPES="Release;Debug;RelWithDebugInfo" \
     -DCMAKE_INSTALL_PREFIX="$installPrefix" \
+    -DCMAKE_POLICY_VERSION_MINIMUM=3.5 \
     "${extraCMakeArgs[@]}" \
     "$extraOpenSslArg" \
     -DgRPC_BUILD_TESTS=OFF \