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diff --git a/Cargo.toml b/Cargo.toml
index 1d609aa..b58226e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,7 +27,7 @@ rustc-serialize = "0.3.20"
 tempfile = "1.1.3"
 time = "0.1.34"
 users = "0.5.1"
-nix = "0.17.0"
+nix = "0.20.2"
 
 [features]
 persistent = []