*: bump 0.9.1 (#546)

Signed-off-by: Jay Lee <BusyJayLee@gmail.com>
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 57a34bf..aa28773 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+# 0.9.1 - 2021-09-18
+
+- Make boringssl-src optional (#537)
+- codec: avoid overflowing error (#495)
+
 # 0.9.0 - 2021-05-24
 
 - Support rich error (#514)
diff --git a/Cargo.toml b/Cargo.toml
index 6fecf28..9755697 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "grpcio"
-version = "0.9.0"
+version = "0.9.1"
 edition = "2018"
 authors = ["The TiKV Project Developers"]
 license = "Apache-2.0"
diff --git a/grpc-sys/Cargo.toml b/grpc-sys/Cargo.toml
index 5448363..7a520ef 100644
--- a/grpc-sys/Cargo.toml
+++ b/grpc-sys/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "grpcio-sys"
-version = "0.9.0+1.38.0"
+version = "0.9.1+1.38.0"
 authors = ["The TiKV Project Developers"]
 license = "Apache-2.0"
 keywords = ["grpc", "bindings"]