diff --git a/.circleci/config.yml b/.circleci/config.yml
index 9ef8dc4..c44f8e3 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -26,7 +26,7 @@ jobs:
           command: crystal version
       - run:
           name: "Install dependencies"
-          command: shards install --ignore-crystal-version
+          command: shards install
       - run:
           name: "Run code format check"
           command: |
diff --git a/shard.yml b/shard.yml
index b82e575..64019ec 100644
--- a/shard.yml
+++ b/shard.yml
@@ -17,7 +17,7 @@ development_dependencies:
     version: ~> 0.4.0
   redis:
     github: stefanwille/crystal-redis
-    version: ~> 2.6.0
+    version: ~> 2.7.0
   etcd:
     github: icyleaf/etcd-crystal
     version: ~> 0.4.0