diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index 4ce96f557622..4d81b41666b9 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -1290,8 +1290,8 @@ in
       "sha256-Psjh5lHoMK/89/4VGy4wkLjqmNc8sGkFOwnKTH9MhjY=";
 
   mypy-boto3-ssm =
-    buildMypyBoto3Package "ssm" "1.43.0"
-      "sha256-M8tlm2GCFgFB+VmPvfb/kh3JQkeob2IVKr2HCyTk/2I=";
+    buildMypyBoto3Package "ssm" "1.43.42"
+      "sha256-HVyE4b0DZMpnCC0uzAC2HAnFioMgif7aeUZHg3zm05A=";
 
   mypy-boto3-ssm-contacts =
     buildMypyBoto3Package "ssm-contacts" "1.43.0"