diff --git a/Cargo.toml b/Cargo.toml
index 56d79c9..c19e6da 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,9 +9,9 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies.tokio]
-version = "1.0"
+version = "^1.0"
 features = ["net", "time"]
 
 [dev-dependencies.tokio]
-version = "1.0"
+version = "^1.0"
 features = ["macros", "net", "rt-multi-thread", "time"]
\ No newline at end of file