diff --git a/pkgs/development/python-modules/mypy/default.nix b/pkgs/development/python-modules/mypy/default.nix
index c5ca8e1f4b57..d4361baf903a 100644
--- a/pkgs/development/python-modules/mypy/default.nix
+++ b/pkgs/development/python-modules/mypy/default.nix
@@ -3,14 +3,14 @@
 
 buildPythonPackage rec {
   pname = "mypy";
-  version = "0.701";
+  version = "0.711";
 
   # Tests not included in pip package.
   doCheck = false;
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "05479r3gbq17r22hyhxjg49smx5q864pgx8ayy23rsdj4w6z2r2p";
+    sha256 = "0s1kwi1dhrv55v0c9w7c1g6mq5d2dpw7x1jj5mcnniw77mclmvdv";
   };
 
   disabled = !isPy3k;
diff --git a/pkgs/development/python-modules/typed-ast/default.nix b/pkgs/development/python-modules/typed-ast/default.nix
index f540cf72877a..0514be0fb4d4 100644
--- a/pkgs/development/python-modules/typed-ast/default.nix
+++ b/pkgs/development/python-modules/typed-ast/default.nix
@@ -1,10 +1,12 @@
-{ buildPythonPackage, fetchPypi, lib, pythonOlder }:
+{ buildPythonPackage, fetchFromGitHub, lib, pythonOlder }:
 buildPythonPackage rec {
   pname = "typed-ast";
-  version = "1.3.5";
-  src = fetchPypi{
-    inherit pname version;
-    sha256 = "1m7pr6qpana3cvqwiw7mlvrgvmw27ch5mx1592572xhlki8g85ak";
+  version = "1.4.0";
+  src = fetchFromGitHub{
+    owner = "python";
+    repo = "typed_ast";
+    rev = version;
+    sha256 = "0l0hz809f7i356kmqkvfsaswiidb98j9hs9rrjnfawzqcbffzgyb";
   };
   # Only works with Python 3.3 and newer;
   disabled = pythonOlder "3.3";