diff --git a/requirements-dev.txt b/requirements-dev.txt
index 0f003ca742..5b977c929a 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -9,7 +9,7 @@ astroid>=3,<4
 sphinx-autodoc-typehints>=1.24.0,<4
 sphinxcontrib-autoprogram==0.1.9
 cwltest>=2.2.20211116163652
-mypy==1.14.1
+mypy==1.15.0
 types-aws-xray-sdk
 types-boto<2.49.18.20241020
 types-Flask-Cors
diff --git a/src/toil/wdl/wdltoil.py b/src/toil/wdl/wdltoil.py
index 5f34031b7d..d83bbaf5c0 100755
--- a/src/toil/wdl/wdltoil.py
+++ b/src/toil/wdl/wdltoil.py
@@ -3803,7 +3803,7 @@ def patch_prepare_mounts_singularity() -> list[tuple[str, str, bool]]:
                     # miniwdl depends on docker so this should be available but check just in case
                     pass
                     # docker stubs are still WIP: https://github.com/docker/docker-py/issues/2796
-                    from docker.types import Mount  # type: ignore[import-untyped]
+                    from docker.types import Mount  # type: ignore[import-not-found]
 
                     def patch_prepare_mounts_docker(
                         logger: logging.Logger,