diff --git a/jenkins/jenkins-lasttest-agent/Dockerfile b/jenkins/jenkins-lasttest-agent/Dockerfile
index 61a67b8b0f4eb91af66eb510fcb088a66b7920ad..78c9456b067977e4a75ce35d42528f40adc87a11 100644
--- a/jenkins/jenkins-lasttest-agent/Dockerfile
+++ b/jenkins/jenkins-lasttest-agent/Dockerfile
@@ -14,6 +14,9 @@ RUN apt update \
         wget \
         openssh-server
 
+ADD lets-encrypt-staging-root-certs/*.crt /usr/local/share/ca-certificates/
+RUN update-ca-certificates --fresh
+
 RUN wget https://github.com/grafana/k6/releases/download/${K6_VERSION}/k6-${K6_VERSION}-linux-amd64.tar.gz -O /tmp/k6.tar.gz \
   && tar -xzf /tmp/k6.tar.gz -C /usr/share --strip-components=1 \
   && ln -s /usr/share/k6 /usr/bin/k6
diff --git a/jenkins/jenkins-lasttest-agent/lets-encrypt-staging-root-certs/letsencrypt-stg-root-x1.crt b/jenkins/jenkins-lasttest-agent/lets-encrypt-staging-root-certs/letsencrypt-stg-root-x1.crt
new file mode 100644
index 0000000000000000000000000000000000000000..37655b25dbc8fb00289fe964a41a290c38b0e285
--- /dev/null
+++ b/jenkins/jenkins-lasttest-agent/lets-encrypt-staging-root-certs/letsencrypt-stg-root-x1.crt
@@ -0,0 +1,32 @@
+-----BEGIN CERTIFICATE-----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=
+-----END CERTIFICATE-----
diff --git a/jenkins/jenkins-lasttest-agent/lets-encrypt-staging-root-certs/letsencrypt-stg-root-x2.crt b/jenkins/jenkins-lasttest-agent/lets-encrypt-staging-root-certs/letsencrypt-stg-root-x2.crt
new file mode 100644
index 0000000000000000000000000000000000000000..f627e1d568d6010aaeb5d4af8b620c2cc4cfe493
--- /dev/null
+++ b/jenkins/jenkins-lasttest-agent/lets-encrypt-staging-root-certs/letsencrypt-stg-root-x2.crt
@@ -0,0 +1,15 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/jenkins/jenkins-lasttest-agent/readme.md b/jenkins/jenkins-lasttest-agent/readme.md
index 2ea5d279ca6a1c4dd457ee2babf7103d8045a791..40c9e9cbed624066df5777d1cea8b5b044f1be68 100644
--- a/jenkins/jenkins-lasttest-agent/readme.md
+++ b/jenkins/jenkins-lasttest-agent/readme.md
@@ -1,7 +1,7 @@
 # Image bauen
 
-`docker build -t docker.ozg-sh.de/jenkins-lasttest-agent:v0.42.0-kubectl .`
+`docker build -t docker.ozg-sh.de/jenkins-lasttest-agent:v0.42.0-kubectl-staging-ca .`
 
 # push
 
-`docker push docker.ozg-sh.de/jenkins-lasttest-agent:v0.42.0-kubectl`
\ No newline at end of file
+`docker push docker.ozg-sh.de/jenkins-lasttest-agent:v0.42.0-kubectl-staging-ca`
\ No newline at end of file