diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index f7a8d9aeaec..5383204f8be 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -26753,7 +26753,7 @@ in modules // {
 
   tornado = buildPythonPackage rec {
     name = "tornado-${version}";
-    version = "4.4.1";
+    version = "4.4.2";
 
     propagatedBuildInputs = with self; [ backports_abc backports_ssl_match_hostname certifi singledispatch ];
 
@@ -26765,7 +26765,7 @@ in modules // {
 
     src = pkgs.fetchurl {
       url = "mirror://pypi/t/tornado/${name}.tar.gz";
-      sha256 = "371d0cf3d56c47accc66116a77ad558d76eebaa8458a6b677af71ca606522146";
+      sha256 = "1k7d90afm5pivam90a37nqiz9wlmakvnsfymp3p43kcqz29gk618";
     };
   };