diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index b0942d096c63..413803cc04c4 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -134,8 +134,8 @@ rec {
       "sha256-0Ex+gq7lC3J1pxSpDZD6SJhxHnWosedNXMFMHdfG2Pc=";
 
   mypy-boto3-appsync =
-    buildMypyBoto3Package "appsync" "1.38.0"
-      "sha256-x6BAqHxN0Jc+TBhafSrNmtUy8GmKrJVrQsZSyqLbEkw=";
+    buildMypyBoto3Package "appsync" "1.38.2"
+      "sha256-5hCTRhwqD1apJqpV/i2tLX09O6uA9Zn6c+gswBHO5H0=";
 
   mypy-boto3-arc-zonal-shift =
     buildMypyBoto3Package "arc-zonal-shift" "1.38.0"