diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index 6dee6bca151c..3f13e630442e 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -882,8 +882,8 @@ in
       "sha256-tT1iRnm3gOaY8clsRshI9NL1FF4aHlBhWyJMi/7HpE8=";
 
   mypy-boto3-mediastore-data =
-    buildMypyBoto3Package "mediastore-data" "1.42.3"
-      "sha256-VBsw9c9B6r3G5vJ0iVUCi4wVoFprYseRLeMWs69KpTQ=";
+    buildMypyBoto3Package "mediastore-data" "1.43.0"
+      "sha256-8K0Xm6PMo+daS6xt4kBqaVvO2/LruFV7PVvugI7sNDU=";
 
   mypy-boto3-mediatailor =
     buildMypyBoto3Package "mediatailor" "1.42.84"