diff --git a/libs/providers/flagd/docker-compose.yaml b/libs/providers/flagd/docker-compose.yaml
index 39178e2e5..14ec540b7 100644
--- a/libs/providers/flagd/docker-compose.yaml
+++ b/libs/providers/flagd/docker-compose.yaml
@@ -8,7 +8,7 @@ services:
     ports:
       - 8014:8013
   flagd-sync:
-    image: ghcr.io/open-feature/sync-testbed:v0.5.20
+    image: ghcr.io/open-feature/sync-testbed:v0.5.21
     ports:
       - 9090:9090
   flagd-sync-unstable: