diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index a6dc87b..5bb21b9 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -1,42 +1,18 @@
 name: Go
 on: [pull_request]
 jobs:
-  test-linux:
-    name: Test on Linux
-    runs-on: ubuntu-latest
+  test:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest]
+        version: [1.18, 1.19, "1.20", 1.21]
+    runs-on: ${{ matrix.os }}
     steps:
-    - name: Set up Go 1.18
-      uses: actions/setup-go@v1
-      with:
-        go-version: 1.18
-      id: go
-    - name: Check out code into the Go module directory
-      uses: actions/checkout@v1
-    - name: Test
-      run: go test -gcflags=-l
-  test-macos:
-    name: Test on Mac
-    runs-on: macos-latest
-    steps:
-    - name: Set up Go 1.18
-      uses: actions/setup-go@v1
-      with:
-        go-version: 1.18
-      id: go
-    - name: Check out code into the Go module directory
-      uses: actions/checkout@v1
-    - name: Test
-      run: go test -gcflags=-l
-  test-windows:
-    name: Test on Windows
-    runs-on: windows-latest
-    steps:
-    - name: Set up Go 1.18
-      uses: actions/setup-go@v1
-      with:
-        go-version: 1.18
-      id: go
-    - name: Check out code into the Go module directory
-      uses: actions/checkout@v1
-    - name: Test
-      run: go test -gcflags=-l
+      - name: Set up Go ${{ matrix.version }}
+        uses: actions/setup-go@v1
+        with:
+          go-version: ${{ matrix.version }}
+      - name: Check out code into the Go module directory
+        uses: actions/checkout@v1
+      - name: Test
+        run: go test -gcflags='all=-N -l'
diff --git a/README.md b/README.md
index a8724e5..f033834 100644
--- a/README.md
+++ b/README.md
@@ -14,8 +14,6 @@ Go 语言猴子补丁（monkey patching）框架。
 
 Bouke 已经不再维护原项目，所以只能开一个新项目了🤣。
 
-有兴趣的同学也可以加微信 `taoshu-in` 讨论，拉你进群。
-
 ## 快速入门
 
 首先，引入 monkey 包
@@ -62,7 +60,9 @@ func main() {
 
 ## 注意事项
 
-1. Monkey 需要关闭 Go 语言的内联优化才能生效，比如测试的时候需要：`go test -gcflags=all=-l`。
+1. Monkey 需要关闭 Go 语言的内联优化才能生效，比如测试的时候需要：`go test -gcflags='all=-N -l'`。
 2. Monkey 需要在运行的时候修改内存代码段，因而无法在一些对安全性要求比较高的系统上工作。
 3. Monkey 不应该用于生产系统，但用来 mock 测试代码还是没有问题的。
-4. Monkey 目前仅支持 amd64 指令架构，支持 linux/macos/windows 平台。
+4. Monkey 目前仅支持 amd64 指令架构，支持 linux/macos/~~windows~~[^win] 平台。
+
+[^win]: 目前在 Win 平台下 Go 1.20 版本之后会报错。欢迎熟悉 Win 平台的同学提供 PR。问题解决之前建议 Win 用户使用 WSL。
diff --git a/go.sum b/go.sum
index db5cb5f..75a53c4 100644
--- a/go.sum
+++ b/go.sum
@@ -3,4 +3,3 @@ github.com/huandu/go-tls v1.0.1/go.mod h1:WeItecBdaIdUBRb7cSMMk+rq41iFKhf6Q9mDRD
 golang.org/x/arch v0.0.0-20210901143047-ebb09ed340f1 h1:MwxAfiDvuwX8Nnnc6iRDhzyMyyc2tz5tYyCP/pZcPCg=
 golang.org/x/arch v0.0.0-20210901143047-ebb09ed340f1/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
 golang.org/x/sys v0.0.0-20200107162124-548cf772de50/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=
diff --git a/monkey_amd64.go b/monkey_amd64.go
index 66efaf3..c5511d0 100644
--- a/monkey_amd64.go
+++ b/monkey_amd64.go
@@ -1,6 +1,9 @@
 package monkey
 
 import (
+	"runtime"
+	"strings"
+
 	"golang.org/x/arch/x86/x86asm"
 )
 
@@ -95,13 +98,12 @@ func getFirstCallFunc(from uintptr) uintptr {
 	f := rawMemoryAccess(from, 1024)
 
 	s := 0
-	var lastLea x86asm.Inst
 	for {
 		i, err := x86asm.Decode(f[s:], 64)
 		if err != nil {
 			panic(err)
 		}
-		if i.Op == x86asm.CALL && lastLea.Args[0].(x86asm.Reg) == x86asm.RAX {
+		if i.Op == x86asm.CALL {
 			arg := i.Args[0]
 			imm := arg.(x86asm.Rel)
 			next := from + uintptr(s+i.Len)
@@ -111,15 +113,15 @@ func getFirstCallFunc(from uintptr) uintptr {
 			} else {
 				to = next - uintptr(-imm)
 			}
-			return to
+			f := runtime.FuncForPC(to)
+			// 泛型函数的名字中包含 [...]
+			if strings.Index(f.Name(), "[") > 0 {
+				return to
+			}
 		}
 		s += i.Len
 		if s >= 1024 {
 			panic("Can not find CALL instruction")
 		}
-		// 有些情况下会生成 NOPW 指令，需要跳过
-		if i.Op == x86asm.LEA {
-			lastLea = i
-		}
 	}
 }