diff --git a/.github/workflows/trigger-gitlab-pipeline.yml b/.github/workflows/trigger-gitlab-pipeline.yml
index ba324f6..f4f60e0 100644
--- a/.github/workflows/trigger-gitlab-pipeline.yml
+++ b/.github/workflows/trigger-gitlab-pipeline.yml
@@ -16,6 +16,11 @@ on:
         required: false
         default: true
         type: boolean
+      github-sha-override:
+        description: "Option to override the SHA"
+        required: false
+        type: string
+        default: ""
     secrets:
       ci-api-v4-url:
         description: 'GitLab API v4 root URL'
@@ -72,6 +77,4 @@ jobs:
           ACCESS_TOKEN: ${{ secrets.access-token }}
           TRIGGER_TOKEN: ${{ secrets.trigger-token }}
           PROJECT_ID: ${{ secrets.project-id }}
-
-
-
+          GITHUB_SHA_OVERRIDE: ${{ inputs.github-sha-override }}
diff --git a/index.js b/index.js
index 7a4a4d6..372b94a 100644
--- a/index.js
+++ b/index.js
@@ -123,6 +123,10 @@ function getEnv (name) {
     return val;
 }
 
+function getOptionalEnv (name) {
+    return process.env[name] || '';
+}
+
 function getBooleanEnv (name) {
     const trueValue = ['true', 'True', 'TRUE'];
     const falseValue = ['false', 'False', 'FALSE'];
@@ -140,7 +144,8 @@ async function main () {
         projectId: getEnv('PROJECT_ID'),
         triggeredRef: getEnv('TRIGGERED_REF'),
         schedule: getBooleanEnv('SCHEDULE'),
-        cancelOutdatedPipelines: getBooleanEnv('CANCEL_OUTDATED_PIPELINES')
+        cancelOutdatedPipelines: getBooleanEnv('CANCEL_OUTDATED_PIPELINES'),
+        githubShaOverride: getOptionalEnv('GITHUB_SHA_OVERRIDE')
     };
 
     const githubConfig = {
@@ -157,6 +162,10 @@ async function main () {
         break;
     case 'push':
     case 'schedule':
+        if (inputConfig.githubShaOverride) {
+            githubConfig.githubSha = inputConfig.githubShaOverride;
+        }
+        break;
     case 'merge_group':
         break;
     default: