diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index c88acab..15a6e27 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -17,7 +17,7 @@ jobs:
     - name: Setup Go
       uses: actions/setup-go@v2
       with:
-        go-version: '1.16.0'
+        go-version: '1.21.1'
 
     - name: Extract branch name
       shell: bash
diff --git a/README.md b/README.md
index e67d262..af0d96a 100644
--- a/README.md
+++ b/README.md
@@ -138,7 +138,7 @@ In most cases, these binaries will be sufficient.
 
 ### Building
 
-If you would like to build the binaries yourself, you will require Go 1.16 (may
+If you would like to build the binaries yourself, you will require Go 1.21 (may
 work with earlier versions, but this is untested).
 
 ```