diff --git a/pkgs/development/python-modules/autobahn/default.nix b/pkgs/development/python-modules/autobahn/default.nix
index 01922f98c40..4105a5d965f 100644
--- a/pkgs/development/python-modules/autobahn/default.nix
+++ b/pkgs/development/python-modules/autobahn/default.nix
@@ -4,11 +4,11 @@
 }:
 buildPythonPackage rec {
   pname = "autobahn";
-  version = "18.8.2";
+  version = "18.9.2";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "448df2e241011ea2948799918930042d81e63d26b01912c472f5a9a37f42f319";
+    sha256 = "1mhj64rsnbi6rc0hskmllw280rvd99z045p6dq8h0mw60r7r52yr";
   };
 
   propagatedBuildInputs = [ six txaio twisted zope_interface cffi ] ++
diff --git a/pkgs/development/python-modules/txaio/default.nix b/pkgs/development/python-modules/txaio/default.nix
index 2bfdbae918a..01d7b04b3dd 100644
--- a/pkgs/development/python-modules/txaio/default.nix
+++ b/pkgs/development/python-modules/txaio/default.nix
@@ -2,11 +2,11 @@
 
 buildPythonPackage rec {
   pname = "txaio";
-  version = "18.7.1";
+  version = "18.8.1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "701de939e90bb80f7e085357081552437526752199def5541dddfc34c0b0593f";
+    sha256 = "1zmpdph6zddgrnkkcykh6qk5s46l7s5mzfqrh82m4b5iffn61qv7";
   };
 
   checkInputs = [ pytest mock ];