diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index d90ac2f33eaf..d8f69f4f3b07 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -347,7 +347,7 @@ rec {
 
   mypy-boto3-inspector2 = buildMypyBoto3Package "inspector2" "1.34.29" "sha256-ZMdNVgKXQnEHyK4tV/XegvFX7xdk5A1AiSfpTKWCtcY=";
 
-  mypy-boto3-internetmonitor = buildMypyBoto3Package "internetmonitor" "1.34.0" "sha256-IWPylBWqk4uNn4LhwTkc17lbYn1xP1rxVzAGG3V659U=";
+  mypy-boto3-internetmonitor = buildMypyBoto3Package "internetmonitor" "1.34.48" "sha256-tJ5Hu8ojUahG1YbNHgwDjYWqbSPCZEUyYM/dOObmArg=";
 
   mypy-boto3-iot = buildMypyBoto3Package "iot" "1.34.0" "sha256-E7ilb7HmEBYm+cvWIDmkvfaR72nlu8QqMr9HJBOeVro=";