diff --git a/.flatpak-manifest.json b/.flatpak-manifest.json
index b4df47761..4881f7b57 100644
--- a/.flatpak-manifest.json
+++ b/.flatpak-manifest.json
@@ -78,6 +78,7 @@
             "name": "olm",
             "buildsystem": "cmake-ninja",
             "config-opts": [
+                "-DCMAKE_POLICY_VERSION_MINIMUM=3.5",
                 "-DOLM_TESTS=OFF"
             ],
             "sources": [