diff --git a/testing/matrix-sdk-integration-testing/assets/Dockerfile b/testing/matrix-sdk-integration-testing/assets/Dockerfile
index 56dd700a7..b68b25190 100644
--- a/testing/matrix-sdk-integration-testing/assets/Dockerfile
+++ b/testing/matrix-sdk-integration-testing/assets/Dockerfile
@@ -1,4 +1,4 @@
-FROM matrixdotorg/synapse:latest
+FROM docker.io/matrixdotorg/synapse:latest
 ADD ci-start.sh /ci-start.sh
 RUN chmod 770 /ci-start.sh
 ENTRYPOINT /ci-start.sh
diff --git a/testing/sliding-sync-integration-test/assets/Dockerfile b/testing/sliding-sync-integration-test/assets/Dockerfile
index 56dd700a7..b68b25190 100644
--- a/testing/sliding-sync-integration-test/assets/Dockerfile
+++ b/testing/sliding-sync-integration-test/assets/Dockerfile
@@ -1,4 +1,4 @@
-FROM matrixdotorg/synapse:latest
+FROM docker.io/matrixdotorg/synapse:latest
 ADD ci-start.sh /ci-start.sh
 RUN chmod 770 /ci-start.sh
 ENTRYPOINT /ci-start.sh
diff --git a/testing/sliding-sync-integration-test/assets/docker-compose.yml b/testing/sliding-sync-integration-test/assets/docker-compose.yml
index bb9452336..7ff1b383e 100644
--- a/testing/sliding-sync-integration-test/assets/docker-compose.yml
+++ b/testing/sliding-sync-integration-test/assets/docker-compose.yml
@@ -14,7 +14,7 @@ services:
       - 8228:8008/tcp
 
   postgres:
-    image: postgres
+    image: docker.io/postgres
     environment:
       POSTGRES_PASSWORD: postgres
       POSTGRES_USER: postgres