diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index 51d73d04364a..5cd24ccf9512 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -1177,8 +1177,8 @@ in
       "sha256-zLVZat92f9tuuikz9rrfAbYFO66ZKkWgJabljitb1Zg=";
 
   mypy-boto3-sagemaker-a2i-runtime =
-    buildMypyBoto3Package "sagemaker-a2i-runtime" "1.41.0"
-      "sha256-2Jm6Qml4HmpUBTSCNYZY2ZAuOVHj950T0Is+YecOm0k=";
+    buildMypyBoto3Package "sagemaker-a2i-runtime" "1.42.3"
+      "sha256-dmUsLcno/E2Sb/mcdVve8qb10gOq2wMBy9P0w+MmS1w=";
 
   mypy-boto3-sagemaker-edge =
     buildMypyBoto3Package "sagemaker-edge" "1.41.0"