diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9d010ba9..093a3a44 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,6 @@ env:
   CARGO_TERM_COLOR: always
   RUST_BACKTRACE: "1"
   RUSTFLAGS: "-D warnings"
-  LLVM_CONFIG_PATH: llvm-config-10
 
 jobs:
   ci:
@@ -21,6 +20,7 @@ jobs:
       matrix:
         os:
           - ubuntu-latest
+          - macos-latest
         php-version:
 #          - "7.0"
           - "7.1"
@@ -34,8 +34,11 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v2
 
-      - name: Install libclang
-        run: sudo apt-get install -y llvm-10-dev libclang-10-dev
+#      - name: Install LLVM and Clang
+#        uses: KyleMayes/install-llvm-action@v1
+#        with:
+#          version: "10.0"
+#          directory: ${{ runner.temp }}/llvm
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
diff --git a/README.md b/README.md
index 7a927369..fe786171 100644
--- a/README.md
+++ b/README.md
@@ -62,7 +62,7 @@ sudo apt install llvm-10-dev libclang-10-dev php-cli
 cargo new myapp
 ```
 
-3. Add the dependencies and metadata to you Cargo project.
+3. Add the dependencies and metadata to you `Cargo.toml`.
 
 ```toml
 [lib]
@@ -72,6 +72,13 @@ crate-type = ["cdylib"]
 phper = "0.2"
 ```
 
+In addition, if you are using `macos`, you should add these rust flags to your `.cargo/config.toml`.
+
+```toml
+[target.x86_64-apple-darwin]
+rustflags = ["-Clink-args=-Wl,-undefined,dynamic_lookup"]
+```
+
 4. Add these code to `main.rs`.
 
 ```rust
diff --git a/examples/hello/.cargo/config.toml b/examples/hello/.cargo/config.toml
new file mode 100644
index 00000000..b07e7a12
--- /dev/null
+++ b/examples/hello/.cargo/config.toml
@@ -0,0 +1,2 @@
+[target.x86_64-apple-darwin]
+rustflags = ["-Clink-args=-Wl,-undefined,dynamic_lookup"]
diff --git a/examples/http-client/.cargo/config.toml b/examples/http-client/.cargo/config.toml
new file mode 100644
index 00000000..b07e7a12
--- /dev/null
+++ b/examples/http-client/.cargo/config.toml
@@ -0,0 +1,2 @@
+[target.x86_64-apple-darwin]
+rustflags = ["-Clink-args=-Wl,-undefined,dynamic_lookup"]
diff --git a/examples/logging/.cargo/config.toml b/examples/logging/.cargo/config.toml
new file mode 100644
index 00000000..b07e7a12
--- /dev/null
+++ b/examples/logging/.cargo/config.toml
@@ -0,0 +1,2 @@
+[target.x86_64-apple-darwin]
+rustflags = ["-Clink-args=-Wl,-undefined,dynamic_lookup"]
diff --git a/phper/src/lib.rs b/phper/src/lib.rs
index 08d16a50..8c40feee 100644
--- a/phper/src/lib.rs
+++ b/phper/src/lib.rs
@@ -28,6 +28,13 @@ crate-type = ["cdylib"]
 phper = "0.2"
 ```
 
+In addition, if you are using `macos`, you should add these rust flags to your `.cargo/config.toml`.
+
+```toml
+[target.x86_64-apple-darwin]
+rustflags = ["-Clink-args=-Wl,-undefined,dynamic_lookup"]
+```
+
 4. Add these code to `main.rs`.
 
 ```no_run