diff --git a/action.yml b/action.yml
index 5dcc60f..7cc6a52 100644
--- a/action.yml
+++ b/action.yml
@@ -108,9 +108,9 @@ runs:
         export TMP_DIR="$(mktemp -d)"
         trap 'rm -fr $TMP_DIR' EXIT
 
-        printf "${{ inputs.gpg-private-key }}" > $TMP_DIR/gpg-private-key
+        printf -- "${{ inputs.gpg-private-key }}" > $TMP_DIR/gpg-private-key
         export GPG_PRIVATE_KEY=$TMP_DIR/gpg-private-key
-        printf "${{ inputs.gpg-passphrase }}" > $TMP_DIR/gpg-passphrase
+        printf -- "${{ inputs.gpg-passphrase }}" > $TMP_DIR/gpg-passphrase
         export GPG_PASSPHRASE="$TMP_DIR/gpg-passphrase"
 
         forgejo-release.sh "${{ inputs.direction }}"