diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index f5df97eb9428..0b8764a2d6a5 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -130,8 +130,8 @@ rec {
       "sha256-NDA1+HZ+Srs5XyNTnHxOjsUPAPRPXgeum0Q6h3Ca7zo=";
 
   mypy-boto3-appstream =
-    buildMypyBoto3Package "appstream" "1.35.32"
-      "sha256-HK2Eh7uNihu+st+A51z+3uYlPacOkpp7Ic3+xIWHhJ0=";
+    buildMypyBoto3Package "appstream" "1.35.85"
+      "sha256-5rsHt8WPBvbXMsqvw2ccOCaSzEE7dlzTre+qhXjQV3g=";
 
   mypy-boto3-appsync =
     buildMypyBoto3Package "appsync" "1.35.77"