diff --git a/Cargo.toml b/Cargo.toml
index 486f697..49084b5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -30,7 +30,7 @@ tokio-openssl = { version = "0.6.1", optional = true }
 
 
 structopt = { version = "0.3.17" }
-simplelog = { version = "0.9.0", optional = true }
+simplelog = { version = "0.11.1", optional = true }
 humantime = { version = "2.1.0" }
 
 strum = { version = "0.22.0" }
@@ -40,7 +40,7 @@ thiserror = "1.0.23"
 hex = { version = "0.4.2", optional = true }
 
 [dev-dependencies]
-simplelog = "0.9.0"
+simplelog = "0.11.1"
 
 [[bin]]
 name = "coap-client"