diff --git a/Cargo.toml b/Cargo.toml
index 1102d1e..b8dfd20 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,5 +19,5 @@ sodiumoxide = "0.2"
 base64 = "0.13"
 
 [dev-dependencies]
-env_logger = "0.9"
+env_logger = "0.10"
 time = { version = "0.3", features = ["parsing"] }