diff --git a/.github/workflows/upstream-sync.yml b/.github/workflows/upstream-sync.yml
index 0fa05d4361..4f171b0b6e 100644
--- a/.github/workflows/upstream-sync.yml
+++ b/.github/workflows/upstream-sync.yml
@@ -45,6 +45,6 @@ jobs:
           git fetch --tags 'upstream'
 
           spec_url="https://src.fedoraproject.org/rpms/selinux-policy/raw/f${FEDORA_VERSION}/f/selinux-policy.spec"
-          stable_commit=$(curl -Ls "${spec_url}" | grep -E '^%global commit [0-9a-eA-E]+$')
+          stable_commit=$(curl -Ls "${spec_url}" | grep -E '^%global commit [0-9a-fA-F]+$')
           git rebase "${stable_commit#%global commit }"
           git push --follow-tags --force-with-lease