diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index 05233e3ef334..d015865b9cb7 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -969,8 +969,8 @@ in
       "sha256-hjgvlTcA18OeMpJIgpl+ml4zSc73HXrUrM0adOzScl4=";
 
   mypy-boto3-opensearch =
-    buildMypyBoto3Package "opensearch" "1.40.69"
-      "sha256-ql9SD9ZZ2k54A2oZkSS3wWFfswetl5/oVoGyzYb29wI=";
+    buildMypyBoto3Package "opensearch" "1.40.75"
+      "sha256-s5aLz8uOmUn6w6lt6DlksCnTjL+fKcWsTJDAyMnkpIk=";
 
   mypy-boto3-opensearchserverless =
     buildMypyBoto3Package "opensearchserverless" "1.40.58"