diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 01d1724..f2c6605 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,21 +1,29 @@
 name: Build and Test
 
-on: push
+on:
+  push:
+  schedule:
+    - cron: "0 8 * * 6"
 
 jobs:
   build:
     name: Build and Test
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-go@v3
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v4
         with:
           go-version: 'stable'
           check-latest: true
       - name: Vet
         run: |
           go vet ./...
-
       - name: Test
         run: |
           go test -race ./...
+      - name: Staticcheck
+        continue-on-error: true
+        uses: dominikh/staticcheck-action@v1.3.0
+        with:
+          version: 'latest'
+          install-go: false
diff --git a/README.md b/README.md
index 5e808b8..2a0e832 100644
--- a/README.md
+++ b/README.md
@@ -2,12 +2,8 @@
 
 ![Build and Test](https://github.com/nathany/get-programming-with-go/actions/workflows/build.yml/badge.svg)
 
-Available from Manning Publications [https://www.manning.com/books/get-programming-with-go](https://www.manning.com/books/get-programming-with-go?utm_source=nathany&utm_medium=affiliate&utm_campaign=book_youngman_get_9_17_18&a_aid=nathany&a_bid=53f68821).
+Available from Manning Publications [https://www.manning.com/books/get-programming-with-go](https://www.manning.com/books/get-programming-with-go?utm_source=nathany&utm_medium=affiliate&utm_campaign=affiliate&a_aid=nathany).
 
 Try out these examples in The Go Playground: https://play.golang.org
 
 If you downloaded this code from the Manning website, you can browse the latest version online at: https://github.com/nathany/get-programming-with-go.
-
-### Contributing
-
-Feel free to open an issue or ask questions on the Manning liveBook: https://forums.manning.com/forums/get-programming-with-go.
diff --git a/cleanup.go b/cleanup.go
index 1bca6c5..ad70ddf 100644
--- a/cleanup.go
+++ b/cleanup.go
@@ -1,5 +1,5 @@
 // Script to remove AsciiDoctor comments from source code listings when brought over
-// from the book. Yes, I did try to figure out sed on OS X first, but this works.
+// from the book.
 package main
 
 import (
diff --git a/go.mod b/go.mod
index 9e0f192..740e24f 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,3 @@
 module github.com/nathany/get-programming-with-go
 
-go 1.16
+go 1.21
diff --git a/staticcheck.conf b/staticcheck.conf
new file mode 100644
index 0000000..1f020e2
--- /dev/null
+++ b/staticcheck.conf
@@ -0,0 +1 @@
+checks = ["all", "-U1000"]
\ No newline at end of file