diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a512db4..b05b6eb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -34,6 +34,16 @@ jobs:
           components: clippy, rustfmt
       - run:
           sudo apt install -y protobuf-compiler
+      - name: Cache Crates
+        uses: actions/cache@v3
+        with:
+          path: |
+            ./target
+            ~/.cargo
+          key: debug-${{ runner.os }}-${{ hashFiles('rust-toolchain.toml') }}-${{ hashFiles('Cargo.lock') }}
+          restore-keys: |
+            debug-${{ runner.os }}-${{ hashFiles('rust-toolchain.toml') }}-
+            debug-${{ runner.os }}-
       - name: Run Style Check
         run: |
           make ci
diff --git a/README.md b/README.md
index 61914a4..400b302 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,7 @@
 # Serialization-benchmark-rs
+
+[![CI](https://github.com/CeresDB/serialization-benchmark-rs/actions/workflows/ci.yml/badge.svg)](https://github.com/CeresDB/serialization-benchmark-rs/actions/workflows/ci.yml)
+
 Benchmark for serialization in Rust, https://github.com/apache/incubator-horaedb/issues/1515.
 
 # Usage
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
new file mode 100644
index 0000000..31578d3
--- /dev/null
+++ b/rust-toolchain.toml
@@ -0,0 +1,2 @@
+[toolchain]
+channel = "stable"
\ No newline at end of file