diff --git a/build.sh b/build.sh
index 9f048017..32dfcde7 100755
--- a/build.sh
+++ b/build.sh
@@ -19,5 +19,5 @@ jsonnet -J vendor -m manifests "${1-example.jsonnet}" | xargs -I{} sh -c 'cat {}
 
 # Make sure to remove json files
 find manifests -type f ! -name '*.yaml' -delete
-rm kustomization
+rm -f kustomization
 
diff --git a/jsonnet/kube-prometheus/jsonnetfile.json b/jsonnet/kube-prometheus/jsonnetfile.json
index 1b94e026..c00bc857 100644
--- a/jsonnet/kube-prometheus/jsonnetfile.json
+++ b/jsonnet/kube-prometheus/jsonnetfile.json
@@ -26,7 +26,7 @@
           "subdir": "jsonnet/prometheus-operator"
         }
       },
-      "version": "release-0.38"
+      "version": "release-0.39"
     },
     {
       "source": {
diff --git a/jsonnetfile.lock.json b/jsonnetfile.lock.json
index e5719447..6a8f854e 100644
--- a/jsonnetfile.lock.json
+++ b/jsonnetfile.lock.json
@@ -28,8 +28,8 @@
           "subdir": "jsonnet/prometheus-operator"
         }
       },
-      "version": "00cbd4911f931380cf9e19d771d7ebae1ec0a807",
-      "sum": "PfB8G2nfy3e/BrXS1ayymsRRFJvQLWT+oY5aqLS0tE8="
+      "version": "d0a871b710de7b764c05ced98dbd1eb32a681790",
+      "sum": "cIOKRTNBUOl3a+QsaA/NjClmZAhyVJHlDFReKlXJBAs="
     },
     {
       "source": {