diff --git a/.werft/observability/monitoring-satellite.ts b/.werft/observability/monitoring-satellite.ts
index d08eb62bf4327d..bfc0e96fb6984f 100644
--- a/.werft/observability/monitoring-satellite.ts
+++ b/.werft/observability/monitoring-satellite.ts
@@ -231,12 +231,10 @@ function installSetup() {
     exec('kubectl apply -f observability/monitoring-satellite/manifests/namespace.yaml', {silent: true})
     exec('kubectl apply -f observability/monitoring-satellite/manifests/podsecuritypolicy-restricted.yaml', {silent: true})
 
-    const crdExists = exec('kubectl get customresourcedefinitions.apiextensions.k8s.io alertmanagers.monitoring.coreos.com', {silent: true, dontCheckRc: true}).code == 0
-    if (crdExists) {
-        werft.log(sliceName, "CRDs already exists, replacing CRDs'")
-        exec('for yaml in $(find observability/monitoring-satellite/manifests/prometheus-operator/ -type f -name "*CustomResourceDefinition.yaml"); do cat $yaml | kubectl delete -f -; done', {slice: sliceName})
-    }
-    exec('for yaml in $(find observability/monitoring-satellite/manifests/prometheus-operator/ -type f -name "*CustomResourceDefinition.yaml"); do cat $yaml | kubectl create -f -; done', {slice: sliceName})
+    const CRDs = exec(`find observability/monitoring-satellite/manifests/prometheus-operator/ -type f -name "*CustomResourceDefinition.yaml"`, {silent: true}).stdout.trim().split('\n')
+    CRDs.forEach(crd => {
+        exec(`kubectl replace -f ${crd} || kubectl create -f ${crd}`, {slice: sliceName})
+    });
     // Making sure CRDs got installed
     exec('until kubectl get servicemonitors.monitoring.coreos.com --all-namespaces ; do date; sleep 1; echo ""; done', {silent: true})