diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index 862c58b..4a580af 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -29,7 +29,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v4
       with:
-        go-version: '1.19'
+        go-version: '1.20'
 
     - name: Go vet
       run: go vet ./...
diff --git a/README.md b/README.md
index e176a91..e1506a4 100644
--- a/README.md
+++ b/README.md
@@ -145,6 +145,8 @@ export default function () {
 
 ## Install
 
+Requires Go >= 1.20
+
 1. Install xk6:
 ```shell
 go install go.k6.io/xk6/cmd/xk6@latest
diff --git a/go.mod b/go.mod
index 44bbb8a..480d14d 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/domsolutions/xk6-fasthttp
 
-go 1.19
+go 1.20
 
 require (
 	github.com/dop251/goja v0.0.0-20231027120936-b396bb4c349d