diff --git a/Cargo.toml b/Cargo.toml
index 5d9f923..ab4cfda 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,4 +16,4 @@ strong-xml = { version = "0.5.0", features = ["log"] }
 zip = "0.5.5"
 
 [dev-dependencies]
-env_logger = "0.7.1"
+env_logger = "0.9.0"