diff --git a/Jenkinsfile b/Jenkinsfile
index 7fa336a..6d5210a 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -2,7 +2,14 @@ pipeline {
   agent any
 
   triggers {
-    githubPush() // Enables webhook support via GitHub-style POST
+    genericTrigger(
+      causeString: 'Triggered on tag push',
+      token: 'tag-trigger-secret',
+      printContributedVariables: true,
+      printPostContent: true,
+      regexpFilterExpression: 'ref=refs/tags/.*',
+      regexpFilterText: '$ref'
+    )
   }
 
   environment {
@@ -31,7 +38,7 @@ pipeline {
         }
       }
       steps {
-        sh 'docker build -t $IMAGE_NAME:$GIT_COMMIT .'
+        sh 'docker build -t $IMAGE_NAME:$GIT_COMMIT -f docker/Dockerfile .'
         withCredentials([usernamePassword(credentialsId: "$DOCKER_CREDENTIALS_ID", usernameVariable: 'USERNAME', passwordVariable: 'PASSWORD')]) {
           sh """
             echo "$PASSWORD" | docker login $REGISTRY -u "$USERNAME" --password-stdin