try downgrading mypy

AlexWaygood · web-flow · commit 6b9cac4a7564 · 2026-01-01T01:33:57.000Z
diff --git a/requirements-tests.txt b/requirements-tests.txt
@@ -1,6 +1,6 @@
 # Type checkers that we test our stubs against. These should always
 # be pinned to a specific version to make failure reproducible.
-mypy==1.19.1
+mypy==1.18.2
 pyright==1.1.407
 
 # Libraries used by our various scripts.
