diff --git a/Cargo.toml b/Cargo.toml
index 8e51c2e..1f6b865 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -31,17 +31,17 @@ core-foundation = "*"
 cgl = "0.1"
 
 [target.i686-unknown-linux-gnu.dependencies.x11]
-version = "*"
+version = "^2.0.1"
 features = ["xlib"]
 
 [target.x86_64-unknown-linux-gnu.dependencies.x11]
-version = "*"
+version = "^2.0.1"
 features = ["xlib"]
 
 [target.arm-unknown-linux-gnueabihf.dependencies.x11]
-version = "*"
+version = "^2.0.1"
 features = ["xlib"]
 
 [target.aarch64-unknown-linux-gnu.dependencies.x11]
-version = "*"
+version = "^2.0.1"
 features = ["xlib"]