diff --git a/proxmox-sys/Cargo.toml b/proxmox-sys/Cargo.toml
index cf736c0d..59ca42bf 100644
--- a/proxmox-sys/Cargo.toml
+++ b/proxmox-sys/Cargo.toml
@@ -9,7 +9,7 @@ authors = [
 
 [dependencies]
 failure = "0.1"
-lazy_static = "1.1"
+lazy_static = "1.4"
 libc = "0.2"
 proxmox-tools = { path = "../proxmox-tools" }