diff --git a/pkgs/servers/matrix-synapse/default.nix b/pkgs/servers/matrix-synapse/default.nix
index 6214df94be9..d27079399d9 100644
--- a/pkgs/servers/matrix-synapse/default.nix
+++ b/pkgs/servers/matrix-synapse/default.nix
@@ -12,11 +12,11 @@ let
 in
 buildPythonApplication rec {
   pname = "matrix-synapse";
-  version = "1.39.0";
+  version = "1.40.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "sha256-dErfNHDUo0yGLbrRQdwbNkMVfnMfbrO3f7bsRwgRQMM=";
+    sha256 = "sha256-5RCeKTAtuFERQSoz4WinGz36tMuKtijnupPR/X02hCU=";
   };
 
   patches = [