diff --git a/Cargo.toml b/Cargo.toml
index 53d6c29..36a7c58 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,7 @@ embedded-hal = "0.2"
 log = "0.4"
 
 [dev-dependencies]
-env_logger = "0.5"
+env_logger = "0.6"
 futures = "0.1"
 i2cdev = "0.4"
 influent = "0.5"