diff --git a/.github/workflows/go-build.yml b/.github/workflows/go-build.yml
index 23df281..4858972 100644
--- a/.github/workflows/go-build.yml
+++ b/.github/workflows/go-build.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go-version: [ '1.18.x', '1.19.x', '1.20.x', '1.21.x' ]
+        go-version: [ '1.19.x', '1.20.x', '1.21.x' ]
     steps:
     - uses: actions/checkout@v3
     #
diff --git a/README.md b/README.md
index 3582210..6c1a0d0 100644
--- a/README.md
+++ b/README.md
@@ -3,10 +3,10 @@
 TikTok Go SDK: A simple library for interacting with TikTok Developer API in Go. 
 
 
-## Overview
+## Overview
 The TikTok Go SDK provides a straightforward way to integrate TikTok's Developer API into your Go applications.
 
-## Installation
+## Installation
 To install the SDK, use go get:
 
 ```sh
diff --git a/go.mod b/go.mod
index f8fa8be..634dd80 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/HiWay-Media/tiktok-go-sdk
 
-go 1.21.1
+go 1.19
 
 require (
 	github.com/go-resty/resty/v2 v2.13.1 // indirect
diff --git a/tiktok/constants.go b/tiktok/constants.go
new file mode 100644
index 0000000..76ac459
--- /dev/null
+++ b/tiktok/constants.go
@@ -0,0 +1,5 @@
+package tiktok
+
+const (
+    
+)
\ No newline at end of file