Fix mypy version to 0.812 for now (#226)

wcs1only · web-flow · commit 25af69bdf612 · 2021-06-14T13:37:05.000-07:00
diff --git a/dev-requirements.txt b/dev-requirements.txt
@@ -1,5 +1,5 @@
 Flask>=1.1
-mypy>=0.761
+mypy==0.812
 mypy-extensions>=0.4.3
 flake8>=3.7.9 
 aiohttp>=3.6.2
