diff --git a/kubernetes.json b/kubernetes.json
index 1182ad8..819f19b 100644
--- a/kubernetes.json
+++ b/kubernetes.json
@@ -3,14 +3,14 @@
   "description": ["Preset for use with kubernetes repositories"],
   "extends": ["github>thegeeklab/renovate-presets:base"],
   "flux": {
-    "fileMatch": ["flux/.+\\.ya?ml$"]
+    "fileMatch": ["^flux/.+\\.ya?ml$"]
   },
   "helm-values": {
-    "fileMatch": ["flux/(.+/)patch(HelmRelease)\\.ya?ml$"],
+    "fileMatch": ["^flux/(.+/)patch(HelmRelease)\\.ya?ml$"],
     "pinDigests": true
   },
   "kubernetes": {
-    "fileMatch": ["flux/(.+/)patch(Deployment|Cluster)\\.ya?ml$"]
+    "fileMatch": ["^flux/(.+/)patch(Deployment|Cluster)\\.ya?ml$"]
   },
   "packageRules": [
     {
@@ -36,9 +36,9 @@
   ],
   "regexManagers": [
     {
-      "fileMatch": ["flux/(.+/)patch(Cluster)\\.ya?ml$"],
+      "fileMatch": ["^flux/(.+/)patch(Cluster)\\.ya?ml$"],
       "matchStrings": [
-        "^\\s+(imageName):\\s+\"?'?(?<depName>[^:\\s]+):(?<currentValue>[^\"'@]+?)(@(?<currentDigest>sha256:[a-f0-9]+))?\"?'?\\s"
+        "\\s+(imageName):\\s+\"?'?(?<depName>[^:\\s]+):(?<currentValue>[^\"'@]+?)(@(?<currentDigest>sha256:[a-f0-9]+))?\"?'?\\s"
       ],
       "datasourceTemplate": "docker"
     }