diff --git a/hosts/sigma/forgejo.nix b/hosts/sigma/forgejo.nix
index ca61915..f2939f0 100644
--- a/hosts/sigma/forgejo.nix
+++ b/hosts/sigma/forgejo.nix
@@ -29,7 +29,7 @@
       };
       ui = {
         # Default theme.
-        DEFAULT_THEME = "gitea";
+        DEFAULT_THEME = "gitea-light";
       };
       server = {
         # Listen address. Defaults to '0.0.0.0'.