diff --git a/Cargo.toml b/Cargo.toml
index 7262766..010c0de 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -33,4 +33,4 @@ optional = true
 version = "0.2"
 
 [dev-dependencies]
-env_logger = "0.5.3"
+env_logger = "0.6.1"