diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index 90d5ac24b4a1..8663cb2fbd34 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -459,8 +459,8 @@ in
       "sha256-02BUkAFhr9sT8ohkJJFPYNni0O9/UI/G0GUee/Kx5Dw=";
 
   mypy-boto3-ecs =
-    buildMypyBoto3Package "ecs" "1.43.43"
-      "sha256-MYV6zPmiuWwBCv9Jncw5GS4E3+pX++KARj8L8W6yK04=";
+    buildMypyBoto3Package "ecs" "1.43.65"
+      "sha256-mCyC8VzQI4vXhyQ56UL8D4QujTyUnptrRCRoh38qVHk=";
 
   mypy-boto3-efs =
     buildMypyBoto3Package "efs" "1.43.23"