diff --git a/codemagic.yaml b/codemagic.yaml
index d762322..3f31ad0 100644
--- a/codemagic.yaml
+++ b/codemagic.yaml
@@ -69,7 +69,7 @@ workflows:
             -H "Authorization: token $GITEA_TOKEN" \
             "$GITEA_API/repos/$GITEA_REPO/contents/altstore-source.json" \
             | jq -r '.sha')
-          CONTENT=$(base64 altstore-source.json | tr -d '\n')
+          CONTENT=$(base64 -i altstore-source.json | tr -d '\n')
           curl -sf -X PUT "$GITEA_API/repos/$GITEA_REPO/contents/altstore-source.json" \
             -H "Authorization: token $GITEA_TOKEN" \
             -H "Content-Type: application/json" \