diff --git a/pkgs/servers/home-assistant/custom-components/sun2/package.nix b/pkgs/servers/home-assistant/custom-components/sun2/package.nix
index d90a7eac2575..a937e624407c 100644
--- a/pkgs/servers/home-assistant/custom-components/sun2/package.nix
+++ b/pkgs/servers/home-assistant/custom-components/sun2/package.nix
@@ -7,13 +7,13 @@
 buildHomeAssistantComponent rec {
   owner = "pnbruckner";
   domain = "sun2";
-  version = "4.0.0b5";
+  version = "3.4.3";
 
   src = fetchFromGitHub {
     inherit owner;
     repo = "ha-sun2";
     tag = version;
-    hash = "sha256-jMin3lnBgAZ0EopvkM2bZ0X7EMSgWfynJDPKpxTppqw=";
+    hash = "sha256-UATxuKTusDkKLWwJq2CupPcF/TIKAmE5VPo3054cwKc=";
   };
 
   meta = rec {