diff --git a/pkgs/development/python-modules/twisted/default.nix b/pkgs/development/python-modules/twisted/default.nix
index 5c4fea3f9b1..2bea54818c2 100644
--- a/pkgs/development/python-modules/twisted/default.nix
+++ b/pkgs/development/python-modules/twisted/default.nix
@@ -16,12 +16,12 @@
 }:
 buildPythonPackage rec {
   pname = "Twisted";
-  version = "19.10.0";
+  version = "20.3.0";
 
   src = fetchPypi {
     inherit pname version;
     extension = "tar.bz2";
-    sha256 = "7394ba7f272ae722a74f3d969dcf599bc4ef093bc392038748a490f1724a515d";
+    sha256 = "040yzha6cyshnn6ljgk2birgh6mh2cnra48xp5ina5vfsnsmab6p";
   };
 
   propagatedBuildInputs = [ zope_interface incremental automat constantly hyperlink pyhamcrest attrs setuptools ];
diff --git a/pkgs/servers/matrix-synapse/default.nix b/pkgs/servers/matrix-synapse/default.nix
index 8da5d4676d6..f0c8a0d4f81 100644
--- a/pkgs/servers/matrix-synapse/default.nix
+++ b/pkgs/servers/matrix-synapse/default.nix
@@ -23,11 +23,11 @@ let
 
 in buildPythonApplication rec {
   pname = "matrix-synapse";
-  version = "1.11.1";
+  version = "1.12.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0xd4bxsmk67r6pfj5lh0hn36r8z51mxsl39fjfrfdidvl1qqbxnk";
+    sha256 = "18wavnb47w4hfh8dc7g77bfhz03zh1xzl58mxlfi0000qsbkz680";
   };
 
   patches = [