diff --git a/specs.json b/specs.json
index 5ff0de2d..63ecb590 100644
--- a/specs.json
+++ b/specs.json
@@ -1618,6 +1618,12 @@
   "https://www.w3.org/TR/selectors-nonelement-1/",
   "https://www.w3.org/TR/server-timing/",
   "https://www.w3.org/TR/service-workers/",
+  {
+    "categories": [
+      "-browser"
+    ],
+    "url": "https://www.w3.org/TR/shacl12-core/"
+  },
   {
     "url": "https://www.w3.org/TR/sparql12-entailment/",
     "categories": [