diff --git a/CHANGELOG.md b/CHANGELOG.md
index c69854f..eca9d03 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# 0.5.0 - 2021-11-04
+
+- update rand to 0.8
+
 # 0.4.0 - 2020-04-13
 
 - re-arrange macros to avoid leaking
diff --git a/Cargo.toml b/Cargo.toml
index fa097a6..8bb24ce 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "fail"
-version = "0.4.0"
+version = "0.5.0"
 authors = ["The TiKV Project Developers"]
 license = "Apache-2.0"
 keywords = ["failpoints", "fail"]