diff --git a/shard.yml b/shard.yml
index 5ae2686..eccd85b 100644
--- a/shard.yml
+++ b/shard.yml
@@ -13,6 +13,6 @@ dependencies:
     github: kemalcr/kemal
     version: ~> 0.26.0
 
-crystal: 0.30.1
+crystal: 0.31.0
 
 license: AGPLv3