diff --git a/css/selectors.json b/css/selectors.json
index 91cde0fd..7a5fc32e 100644
--- a/css/selectors.json
+++ b/css/selectors.json
@@ -659,6 +659,15 @@
     "status": "standard",
     "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:visited"
   },
+  ":volume-locked": {
+    "syntax": ":volume-locked",
+    "groups": [
+      "Pseudo-classes",
+      "Selectors"
+    ],
+    "status": "standard",
+    "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:volume-locked"
+  },
   ":where()": {
     "syntax": ":where( <complex-selector-list> )",
     "groups": [
@@ -668,6 +677,14 @@
     "status": "standard",
     "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/:where"
   },
+  ":xr-overlay": {
+    "syntax": ":xr-overlay",
+    "groups": [
+      "Pseudo-classes",
+      "Selectors"
+    ],
+    "status": "experimental"
+  },
   "::-ms-browse": {
     "syntax": "::-ms-browse",
     "groups": [