diff --git a/docker-compose.yml b/docker-compose.yml
index 69513a65..2412161b 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -26,7 +26,7 @@ services:
       - 30303:30303
     volumes:
       - /YOUR_ETH_DATA_DIR:/root
-    command: --datadir /root/.ethereum --rpc --rpcaddr 0.0.0.0 --fast
+    command: --datadir /root/.ethereum --rpc --rpcaddr 0.0.0.0 --fast --cache 1024
     image: ethereum/client-go:v1.7.3
 
   relay:
@@ -40,4 +40,4 @@ services:
       - /YOUR_RELAY_KEYSTORE_DIR:/keystore
       - /YOUR_RELAY_DATA_DIR:/data
     command: --unlocks=YOUR_MINER_ACCOUNT --passwords=MINER_ACCOUNT_PASSWORD --config=/data/docker.toml --mode=miner
-    image: loopring/relay:v0.1.1
\ No newline at end of file
+    image: loopring/relay:v0.1.1