diff --git a/gitea/compose.yml b/gitea/compose.yml
index 1861cb6..026cd1d 100644
--- a/gitea/compose.yml
+++ b/gitea/compose.yml
@@ -91,6 +91,10 @@ services:
   runner-cache-server:
     image: gitea/act_runner:latest
     container_name: gitea_runner_cache
+    # The image's default entrypoint (run.sh) ignores any command args and
+    # always registers-then-execs `act_runner daemon` regardless - it has no
+    # cache-server mode. Bypass it entirely and invoke act_runner directly.
+    entrypoint: ["/sbin/tini", "--"]
     command: ["act_runner", "cache-server", "--config", "/data/config.yaml", "--host", "0.0.0.0", "--port", "8088", "--dir", "/data/cache"]
     environment:
       TZ: ${TIMEZONE:-Europe/Amsterdam}