diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index a512f2c26..e610380e9 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -23,7 +23,8 @@ Please avoid:
 ## Building the project
 
 Prerequisites:
-- Go 1.14
+- Go 1.13+ for building the binary
+- Go 1.14+ for running the test suite
 
 Build with: `make` or `go build -o bin/gh ./cmd/gh`
 
diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index d230d3d07..83fa87b8e 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -25,3 +25,18 @@ jobs:
 
       - name: Build
         run: go build -v ./cmd/gh
+
+  build-minimum:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Set up Go 1.13
+        uses: actions/setup-go@v2
+        with:
+          go-version: 1.13
+
+      - name: Check out code
+        uses: actions/checkout@v2
+
+      - name: Build
+        run: go build -v ./cmd/gh
diff --git a/docs/source.md b/docs/source.md
index 951731f8f..fc90ef94f 100644
--- a/docs/source.md
+++ b/docs/source.md
@@ -1,10 +1,9 @@
 # Installation from source
 
-0. Verify that you have Go 1.15+ installed
+0. Verify that you have Go 1.13+ installed
 
    ```sh
    $ go version
-   go version go1.14
    ```
 
    If `go` is not installed, follow instructions on [the Go website](https://golang.org/doc/install).