diff --git a/configuration.nix b/configuration.nix
index e3516ac..2c038fa 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -18,7 +18,7 @@
   # Stateful things to do before updating:
   # 1. Postgres migration
   # 2. Matrix Synapse migration
-  system.stateVersion = "20.03";
+  system.stateVersion = "21.05";
 
   boot.kernelPackages = pkgs.linuxPackages_latest;
   boot.tmpOnTmpfs = true;