diff --git a/build-kaniko.jenkins b/build-kaniko.jenkins
index 2d6ee94..e38d5c5 100644
--- a/build-kaniko.jenkins
+++ b/build-kaniko.jenkins
@@ -21,10 +21,6 @@ spec:
     tty: true
     command:
     - /busybox/sh
-  - name: alpine
-    imagePullPolicy: Always
-    image: ${repository}/library/alpine:latest
-    tty: true
 """,
 ) {
     node (label) {
@@ -78,25 +74,11 @@ spec:
         stage("Build Alpine with CA") {
             container("kaniko") {
                 def DF = """FROM ${repository}/google/kaniko-project/executor:debug
-COPY ./cosign /usr/local/bin/cosign
 COPY ./kaniko-chain.crt /kaniko/ssl/certs/ca-certificates.crt
 """
                 sh "cp /kaniko/ssl/certs/ca-certificates.crt \"${workspace}/kaniko-chain.crt\""
                 writeFile(file: workspace + "/Dockerfile", text: DF)
                 sh "/kaniko/executor --context \"${workspace}\" -f \"${workspace}/Dockerfile\" --destination \"${repository}/library/kaniko:latest\""
-
-                withCredentials([
-                    string(
-                        credentialsId: dockerKeyPass,
-                        variable: "signPass"
-                    ),
-                    file(
-                        credentialsId: dockerKey,
-                        variable: "signKey"
-                    )
-                ]) {
-                    sh "COSIGN_PASSWORD=\"${signPass}\" \"${workspace}/cosign\" sign --key \"${signKey}\" \"${repository}/library/kaniko:latest\""
-                }
             }
         }
     }