diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index 0a48666d69b5..b1220715aaa3 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -677,8 +677,8 @@ rec {
       "sha256-PER1D68w6wBvHUH5CGEn4H1zku92vhcwWDFRpoXZlmg=";
 
   mypy-boto3-iotsecuretunneling =
-    buildMypyBoto3Package "iotsecuretunneling" "1.40.0"
-      "sha256-E1l57KrYP3ggjLVj94kzBB85CFF7HtldUMHGZP7aUEo=";
+    buildMypyBoto3Package "iotsecuretunneling" "1.40.18"
+      "sha256-AS7G6I5JR2tkq1m+cx+9PFaIhe7QwWH0DF/7vuIY+zQ=";
 
   mypy-boto3-iotsitewise =
     buildMypyBoto3Package "iotsitewise" "1.40.2"