diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index 3ea99ad7323b..97a31e604dc8 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -546,8 +546,8 @@ rec {
       "sha256-sTuTQ3ADgiApY0davzOBHz+jz21tp2C4L7Kq6j8dUvY=";
 
   mypy-boto3-forecast =
-    buildMypyBoto3Package "forecast" "1.40.0"
-      "sha256-mo2xp2XnApilK6zB+KZLt/KcJ6mTPskjidfZ0ju6Xss=";
+    buildMypyBoto3Package "forecast" "1.40.17"
+      "sha256-PMEWvzCP8gTKwsV9oIjqIB7jIMDZDjLqdPO/G7nnfDc=";
 
   mypy-boto3-forecastquery =
     buildMypyBoto3Package "forecastquery" "1.40.15"