diff --git a/Cargo.toml b/Cargo.toml
index 5590546..c554212 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -58,7 +58,7 @@ version = "0.21"
 
 [dev-dependencies]
 criterion = "0.3.4"
-env_logger = "0.8.1"
+env_logger = "0.9.0"
 input_buffer = "0.5.0"
 net2 = "0.2.33"
 rand = "0.8.4"