diff --git a/renovate.json b/renovate.json
index 96e8cad..c290d62 100644
--- a/renovate.json
+++ b/renovate.json
@@ -11,7 +11,7 @@
         ".+\\.nix$"
       ],
       "matchStrings": [
-        "\\s+image\\s+=\\s+\"(?<depName>.*?):(?<currentValue>.*?)\""
+        "\\s+image\\s+=\\s+\"(?<depName>.*?):(?<currentValue>.*?)(@(?<digest>sha256:[a-z0-9]{64}))?\""
       ]
     }
   ]