diff --git a/.cirrus.yml b/.cirrus.yml
deleted file mode 100644
index edc6de0..0000000
--- a/.cirrus.yml
+++ /dev/null
@@ -1,69 +0,0 @@
-linux_task:
-  container:
-    image: golang:latest
-  env:
-    GO111MODULE: on
-    GOPATH: /tmp/go
-    CIRRUS_WORKING_DIR: /tmp/go/src/github.com/${CIRRUS_REPO_FULL_NAME}
-  build_script:
-    - go version
-    - go get ./...
-    - go build -race -v ./...
-  test_script:
-    - go test -race -v ./...
-
-osx_task:
-  macos_instance:
-    image: ghcr.io/cirruslabs/macos-ventura-base:latest
-  env:
-    GO111MODULE: on
-    GOPATH: /tmp/go
-    PATH: ${GOPATH}/bin:${PATH}
-    CIRRUS_WORKING_DIR: /tmp/go/src/github.com/${CIRRUS_REPO_FULL_NAME}
-  install_script:
-    - brew install go
-  build_script:
-    - go version
-    - go get ./...
-    - go build -race -v ./...
-  test_script:
-    - go test -race -v ./...
-
-windows_task:
-  windows_container:
-    image: cirrusci/windowsservercore:2019
-  env:
-    GO111MODULE: on
-    GOPATH: C:\golang
-    PATH: ${GOPATH}\bin;C:\Program Files\Go\bin;C:\Users\ContainerAdministrator\go\bin;${PATH}
-    CIRRUS_WORKING_DIR: C:\golang\src\github.com\${CIRRUS_REPO_FULL_NAME}
-  install_script:
-    - choco install -y golang
-    - choco install -y mingw  # This installs MinGW which includes gcc
-    - refreshenv
-    - gcc --version
-  build_script:
-    - go version
-    - go get ./...
-    - env CGO_ENABLED=1 go build -race -v ./...
-  test_script:
-    - refreshenv
-    - echo $PATH
-    - env CGO_ENABLED=1 go test -race -v ./...
-
-freebsd_task:
-  freebsd_instance:
-    image: freebsd-14-0-release-amd64-ufs
-  env:
-    GO111MODULE: on
-    GOPATH: /tmp/go
-    PATH: ${GOPATH}/bin:${PATH}
-    CIRRUS_WORKING_DIR: /tmp/go/src/github.com/${CIRRUS_REPO_FULL_NAME}
-  install_script:
-    - pkg install -y go git
-  build_script:
-    - go version
-    - go get ./...
-    - go build -race -v ./...
-  test_script:
-    - go test -race -v ./...
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..eccb48f
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,65 @@
+name: CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  linux:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: 'stable'
+      - name: Build
+        run: |
+          go version
+          go get ./...
+          go build -race -v ./...
+      - name: Test
+        run: go test -race -v ./...
+      - name: Bench
+        run: go test -run=XXX -bench=. ./...
+
+  macos:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: 'stable'
+      - name: Build
+        run: |
+          go version
+          go get ./...
+          go build -race -v ./...
+      - name: Test
+        run: go test -race -v ./...
+      - name: Bench
+        run: go test -run=XXX -bench=. ./...
+
+  windows:
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: 'stable'
+      - name: Install MinGW (for gcc)
+        run: choco install -y mingw
+      - name: Build
+        run: |
+          go version
+          go get ./...
+          $env:CGO_ENABLED=1; go build -race -v ./...
+      - name: Test
+        run: |
+          $env:CGO_ENABLED=1; go test -race -v ./...
+      - name: Bench
+        run: go test -run=XXX -bench=. ./...
diff --git a/go.mod b/go.mod
index 11ba6e7..b433883 100644
--- a/go.mod
+++ b/go.mod
@@ -1,5 +1,5 @@
 module github.com/awnumar/memcall
 
-go 1.18
+go 1.23.0
 
-require golang.org/x/sys v0.20.0
+require golang.org/x/sys v0.35.0
diff --git a/go.sum b/go.sum
index 5d1e088..5ace7b9 100644
--- a/go.sum
+++ b/go.sum
@@ -1,2 +1,2 @@
-golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
-golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.35.0 h1:vz1N37gP5bs89s7He8XuIYXpyY0+QlsKmzipCbUtyxI=
+golang.org/x/sys v0.35.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
diff --git a/memcall.go b/memcall.go
index 5027493..4ca80f2 100644
--- a/memcall.go
+++ b/memcall.go
@@ -1,7 +1,6 @@
 package memcall
 
 import (
-	"reflect"
 	"runtime"
 	"unsafe"
 )
@@ -56,8 +55,3 @@ func _getStartPtr(b []byte) unsafe.Pointer {
 func _getPtr(b []byte) uintptr {
 	return uintptr(_getStartPtr(b))
 }
-
-func _getBytes(ptr uintptr, len int, cap int) []byte {
-	var sl = reflect.SliceHeader{Data: ptr, Len: len, Cap: cap}
-	return *(*[]byte)(unsafe.Pointer(&sl))
-}
diff --git a/memcall_solaris.go b/memcall_solaris.go
index 14c7035..9b1e885 100644
--- a/memcall_solaris.go
+++ b/memcall_solaris.go
@@ -1,4 +1,5 @@
 //go:build solaris
+
 package memcall
 
 import (
diff --git a/memcall_windows.go b/memcall_windows.go
index 86eb6ab..2023d3b 100644
--- a/memcall_windows.go
+++ b/memcall_windows.go
@@ -5,6 +5,7 @@ package memcall
 import (
 	"errors"
 	"fmt"
+	"unsafe"
 
 	"golang.org/x/sys/windows"
 )
@@ -36,7 +37,7 @@ func Alloc(n int) ([]byte, error) {
 	}
 
 	// Convert this pointer to a slice.
-	b := _getBytes(ptr, n, n)
+	b := unsafe.Slice((*byte)(unsafe.Pointer(ptr)), n)
 
 	// Wipe it just in case there is some remnant data.
 	wipe(b)