diff --git a/shard.yml b/shard.yml
index 8d4b233..5aeeb4e 100644
--- a/shard.yml
+++ b/shard.yml
@@ -9,7 +9,7 @@ crystal: 0.31.0
 dependencies:
   base32:
     github: lemarsu/base32
-    version: 0.1.1
+    version: "~> 0.1.2"
 
 development_dependencies:
   timecop: