diff --git a/.github/workflows/reusable-release.yml b/.github/workflows/reusable-release.yml
index 3fa5ce8..74e6d32 100644
--- a/.github/workflows/reusable-release.yml
+++ b/.github/workflows/reusable-release.yml
@@ -61,6 +61,10 @@ jobs:
           key_fingerprint=$key_fingerprint
           key_email=$key_email
           EndOfFile
+          if ! [[ "$key_fingerprint" =~ ^[[:xdigit:]]{8,}$ ]]; then
+            echo "::error title=Invalid PGP key::Has the SONATYPE_PASSWORD been set correctly?"
+            exit 1
+          fi
       - name: Check for default branch
         id: generate-version-suffix
         env: