diff --git a/script/update_libgit2 b/script/update_libgit2
index 008f6940..c70b43c2 100755
--- a/script/update_libgit2
+++ b/script/update_libgit2
@@ -31,6 +31,7 @@ cmake -DBUILD_SHARED_LIBS:BOOL=OFF \
   -DLIBSSH2_INCLUDE_DIRS:PATH=$ARCH_PREFIX/include/ \
   -DBUILD_CLAR:BOOL=OFF \
   -DTHREADSAFE:BOOL=ON \
+  -DCMAKE_POLICY_VERSION_MINIMUM=3.5 \
   ..
 cmake --build .