diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 3310b410..1f02ba77 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -193,7 +193,8 @@ lint_mypy:
   script:
     - pip install mypy
     - pip install -e .[test]
-    - mypy
+    # exclude vendored file
+    - mypy --exclude fdroidserver/apksigcopier.py
 
 fedora_latest:
   image: fedora:latest
diff --git a/fdroidserver/apksigcopier.py b/fdroidserver/apksigcopier.py
index 48b72ce1..bb4e9b22 100644
--- a/fdroidserver/apksigcopier.py
+++ b/fdroidserver/apksigcopier.py
@@ -96,7 +96,7 @@ class ZipError(APKSigCopierError):
 class ReproducibleZipInfo(zipfile.ZipInfo):
     """Reproducible ZipInfo hack."""
 
-    _override = {}  # type: Dict[str, Any]
+    _override = {}
 
     def __init__(self, zinfo, **override):
         if override: