diff --git a/Cargo.toml b/Cargo.toml
index bf02edb6c..42140009c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,7 +18,7 @@ lazy_static = "0.2.1"
 tinysegmenter = "0.1.0"
 regex = "0.2"
 fst = {version="0.3", default-features=false}
-atomicwrites = {version="0.1", optional=true}
+atomicwrites = {version="0.2", optional=true}
 tempfile = "2.1"
 log = "0.3.6"
 combine = "2.2"