diff --git a/Cargo.toml b/Cargo.toml
index 8fc0649..2d95a82 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,7 +18,7 @@ embedded-hal = "0.2"
 log = "0.4"
 
 [dev-dependencies]
-env_logger = "0.8"
+env_logger = "0.9"
 futures = { version = "0.3" }
 i2cdev = "0.4"
 influx_db_client = { version = "0.5", default-features= false, features = ["rustls-tls"] }