diff --git a/.github/workflows/mypy.yml b/.github/workflows/mypy.yml
index 6b2a52769..df0a2ab17 100644
--- a/.github/workflows/mypy.yml
+++ b/.github/workflows/mypy.yml
@@ -10,7 +10,7 @@ on:
       - main
 
 env:
-  SPEAKEASY_VERSION: v2.943.0
+  SPEAKEASY_VERSION: v2.945.4
 
 jobs:
   mypy: