diff --git a/deploy/jenkins/Jenkinsfile.poll b/deploy/jenkins/Jenkinsfile.poll
index 3f20983..cbcaa2d 100644
--- a/deploy/jenkins/Jenkinsfile.poll
+++ b/deploy/jenkins/Jenkinsfile.poll
@@ -98,32 +98,18 @@ pipeline {
                         ]) {
                             def services = sh(
                                 script: """
-                                    python3 - <<'PYEOF'
-import urllib.request, urllib.parse, json, sys, base64
-
-registry = "${HARBOR_API}"
-project  = "${params.HARBOR_PROJECT}"
-user     = "${env.HARBOR_USER}"
-passwd   = "${env.HARBOR_PASS}"
-
-params = urllib.parse.urlencode({"page_size": 100})
-url = f"{registry}/projects/{project}/repositories?{params}"
-
-req = urllib.request.Request(url)
-creds = base64.b64encode(f"{user}:{passwd}".encode()).decode()
-req.add_header("Authorization", f"Basic {creds}")
-
-try:
-    with urllib.request.urlopen(req, timeout=30) as resp:
-        repos = json.loads(resp.read())
-    if not isinstance(repos, list):
-        sys.exit(1)
-    names = [r["name"].split("/")[-1] for r in repos]
-    print(",".join(sorted(names)))
-except Exception as e:
-    print(f"ERROR: {e}", file=sys.stderr)
-    sys.exit(1)
-PYEOF
+                                    curl -sf -u "\${HARBOR_USER}:\${HARBOR_PASS}" \\
+                                        --connect-timeout 10 --max-time 30 \\
+                                        --get --data-urlencode "page_size=100" \\
+                                        "${HARBOR_API}/projects/${params.HARBOR_PROJECT}/repositories" \\
+                                    | tr ',' '\\n' \\
+                                    | grep '"name"' \\
+                                    | sed 's/.*"name":"//' \\
+                                    | sed 's/".*//' \\
+                                    | sed 's|.*/||' \\
+                                    | sort \\
+                                    | tr '\\n' ',' \\
+                                    | sed 's/,\$//'
                                 """,
                                 returnStdout: true
                             ).trim()
@@ -159,29 +145,15 @@ PYEOF
 
                             def digestResult = sh(
                                 script: """
-                                    python3 - <<'PYEOF'
-import urllib.request, json, sys, base64
-
-registry = "${HARBOR_API}"
-project  = "${params.HARBOR_PROJECT}"
-svc      = "${svc}"
-tag      = "${params.IMAGE_TAG}"
-user     = "${env.HARBOR_USER}"
-passwd   = "${env.HARBOR_PASS}"
-
-url = f"{registry}/projects/{project}/repositories/{svc}/artifacts/{tag}"
-req = urllib.request.Request(url)
-creds = base64.b64encode(f"{user}:{passwd}".encode()).decode()
-req.add_header("Authorization", f"Basic {creds}")
-
-try:
-    with urllib.request.urlopen(req, timeout=30) as resp:
-        data = json.loads(resp.read())
-    print(data.get("digest", ""))
-except Exception as e:
-    print(f"ERROR: {e}", file=sys.stderr)
-    sys.exit(0)
-PYEOF
+                                    curl -sf -u "\${HARBOR_USER}:\${HARBOR_PASS}" \\
+                                        --connect-timeout 10 --max-time 30 \\
+                                        "${HARBOR_API}/projects/${params.HARBOR_PROJECT}/repositories/${svc}/artifacts/${params.IMAGE_TAG}" \\
+                                    | tr ',' '\\n' \\
+                                    | grep '"digest"' \\
+                                    | head -1 \\
+                                    | sed 's/.*"digest":"//' \\
+                                    | sed 's/".*//' \\
+                                    || true
                                 """,
                                 returnStdout: true
                             ).trim()