diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index c4c20562fc23..9d32db242df1 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -502,8 +502,8 @@ rec {
       "sha256-crNaa6bqSP7fCsFV5CnAHazDpXrFkkb46ria2LWTDvY=";
 
   mypy-boto3-emr-containers =
-    buildMypyBoto3Package "emr-containers" "1.40.17"
-      "sha256-N/Ies7aPNaCwHsrCetlhVOnlkqLUe7LaVvjjnheTpfs=";
+    buildMypyBoto3Package "emr-containers" "1.40.29"
+      "sha256-1TDHCMuGVUm8WlKFmIT0fgSv/9Hdyy4qJLAaNcdrMQE=";
 
   mypy-boto3-emr-serverless =
     buildMypyBoto3Package "emr-serverless" "1.40.0"