diff --git a/libs/providers/flagd/docker-compose.yaml b/libs/providers/flagd/docker-compose.yaml
index 8bea851c7..39178e2e5 100644
--- a/libs/providers/flagd/docker-compose.yaml
+++ b/libs/providers/flagd/docker-compose.yaml
@@ -4,7 +4,7 @@ services:
     ports:
       - 8013:8013
   flagd-unstable:
-    image: ghcr.io/open-feature/flagd-testbed-unstable:v0.5.20
+    image: ghcr.io/open-feature/flagd-testbed-unstable:v0.5.21
     ports:
       - 8014:8013
   flagd-sync: