diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index d31421a8437a..ca0072eeaeac 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -258,8 +258,8 @@ rec {
       "sha256-ghgArlI9Z/rk9kM6k6b+0x/Fugp7q25+uV+Y2dZFtSU=";
 
   mypy-boto3-cloudwatch =
-    buildMypyBoto3Package "cloudwatch" "1.40.0"
-      "sha256-SbEKbGXjkvk+jIXQHToTj+yzhUX1ob8VzT4awbWUAWs=";
+    buildMypyBoto3Package "cloudwatch" "1.40.27"
+      "sha256-81COvDAaq4MASZCpALSWhT9WTdTf0LgurwY44MPs0mc=";
 
   mypy-boto3-codeartifact =
     buildMypyBoto3Package "codeartifact" "1.40.17"