diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index 3d8197b9d166..f41beb76d40e 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -467,8 +467,8 @@ in
       "sha256-lNlav7BQkVjbYE9cdnvcdNki9IDo6tTlerD+lt69Rio=";
 
   mypy-boto3-eks =
-    buildMypyBoto3Package "eks" "1.42.66"
-      "sha256-85+U5zVBUIe9YXGrID3Q2l/KNZYI/JhZ9NMDd24NB5o=";
+    buildMypyBoto3Package "eks" "1.42.85"
+      "sha256-xU0Qd++d81VAt6Alnz463UdfVdsbs9LYnV8+pWnpC6E=";
 
   mypy-boto3-elastic-inference =
     buildMypyBoto3Package "elastic-inference" "1.36.0"