diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index d2b79906a314..3ecaa3f92d19 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -446,8 +446,8 @@ rec {
       "sha256-p+NFAi4x4J6S4v0f2u0awDG+lb2V7r3XwgYwl5CvhHo=";
 
   mypy-boto3-ec2 =
-    buildMypyBoto3Package "ec2" "1.40.0"
-      "sha256-iyPAkVpfnqz2RX12klUOTH2NaFO/tAfiWFXLF+FHGe0=";
+    buildMypyBoto3Package "ec2" "1.40.4"
+      "sha256-fotmSGj+r85lJZPKq4UOc3OvCdnX0pO+qSQVQozxGJw=";
 
   mypy-boto3-ec2-instance-connect =
     buildMypyBoto3Package "ec2-instance-connect" "1.40.0"