diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7d4db3216..33a061baf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,7 +24,7 @@ jobs:
           - 8014:8013
       # sync-testbed for flagd in-process provider e2e tests
       sync:
-        image: ghcr.io/open-feature/sync-testbed:v0.5.4
+        image: ghcr.io/open-feature/sync-testbed:v0.5.5
         ports:
           - 9090:9090
       # sync-testbed for flagd in-process provider reconnect e2e tests
diff --git a/providers/flagd/docker-compose.yaml b/providers/flagd/docker-compose.yaml
index 26fdb196d..935f4d099 100644
--- a/providers/flagd/docker-compose.yaml
+++ b/providers/flagd/docker-compose.yaml
@@ -8,7 +8,7 @@ services:
     ports:
       - 8014:8013
   flagd-sync:
-    image: ghcr.io/open-feature/sync-testbed:v0.5.4
+    image: ghcr.io/open-feature/sync-testbed:v0.5.5
     ports:
       - 9090:9090
   flagd-sync-unstable: