diff --git a/Jenkinsfile b/Jenkinsfile
index 0a449f6..7c16c8e 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -7,9 +7,11 @@ pipeline {
   stages {
     stage('Init') {
       steps {
-        sh 'rbenv local 3.2.2'
-        sh 'echo "ENV[\\\"APP_SESSION_SECRET\\\"] ||= $(ruby secret.rb)" > .env.rb'
-        sh 'echo "ENV[\\\"DB_NAME\\\"] ||= \\\"${DB_NAME}\\\"" >> .env.rb'
+        sh ''' #!/usr/local/bin/bash
+          rbenv local 3.2.2
+          echo "ENV[\\\"APP_SESSION_SECRET\\\"] ||= $(ruby -rsecurerandom -e 'puts SecureRandom.base64(64).inspect()')" > .env.rb
+          echo "ENV[\\\"DB_NAME\\\"] ||= \\\"${DB_NAME}\\\"" >> .env.rb
+        '''
       }
     }
     stage('Build dependencies') {
@@ -51,7 +53,7 @@ pipeline {
             cp .env.rb /tmp/url-shortener/
             cp .ruby-version /tmp/url-shortener/
             cd /tmp/url-shortener
-            rm -rf features spec coverage db/*.db .git* Jenkinsfile *.html secret.rb
+            rm -rf features spec coverage db/*.db .git* Jenkinsfile *.html
             cd /tmp
             tar -czvf $ZIP_FILE url-shortener/
             mv /tmp/$ZIP_FILE $CUR_DIR/
diff --git a/secret.rb b/secret.rb
deleted file mode 100644
index 2672149..0000000
--- a/secret.rb
+++ /dev/null
@@ -1,2 +0,0 @@
-require 'securerandom'
-puts SecureRandom.base64(64).inspect()