diff --git a/pkgs/servers/home-assistant/custom-components/calendar_export/package.nix b/pkgs/servers/home-assistant/custom-components/calendar_export/package.nix
index b63dee9ad998..7e090b453eea 100644
--- a/pkgs/servers/home-assistant/custom-components/calendar_export/package.nix
+++ b/pkgs/servers/home-assistant/custom-components/calendar_export/package.nix
@@ -5,16 +5,16 @@
   icalendar,
 }:
 
-buildHomeAssistantComponent rec {
+buildHomeAssistantComponent {
   owner = "JosephAbbey";
   domain = "calendar_export";
-  version = "0.1.0";
+  version = "0.1.0-unstable-2025-12-13";
 
   src = fetchFromGitHub {
     owner = "JosephAbbey";
     repo = "ha_calendar_export";
-    tag = "v${version}";
-    hash = "sha256-ULnkjnBc0oR1CwA+Mz1RnVamEXOKpgd60xryZMkCQwg=";
+    rev = "abe73d46a42aaec11aca19fed7913ceb525ca784";
+    hash = "sha256-x1UXjpFXKU06FDPLbpPx39nwr1o3ZuluWuSNKomS8SU=";
   };
 
   dependencies = [ icalendar ];