diff --git a/dev/docker-compose-with-keycloak.yml b/dev/docker-compose-with-keycloak.yml
index 77f799c..f949205 100644
--- a/dev/docker-compose-with-keycloak.yml
+++ b/dev/docker-compose-with-keycloak.yml
@@ -8,7 +8,7 @@ services:
     networks: [ catalyst ]
 
   arangodb:
-    image: arangodb/arangodb:3.8.1
+    image: arangodb/arangodb:3.9.1
     environment:
       ARANGO_ROOT_PASSWORD: foobar
     networks: [ catalyst ]
diff --git a/dev/docker-compose.yml b/dev/docker-compose.yml
index e810831..1d6936b 100644
--- a/dev/docker-compose.yml
+++ b/dev/docker-compose.yml
@@ -8,7 +8,7 @@ services:
     networks: [ catalyst ]
 
   arangodb:
-    image: arangodb/arangodb:3.8.1
+    image: arangodb/arangodb:3.9.1
     environment:
       ARANGO_ROOT_PASSWORD: foobar
     networks: [ catalyst ]