diff --git a/data/pc/common/protocolVersions.json b/data/pc/common/protocolVersions.json
index f1de2f5b1..c94a592ba 100644
--- a/data/pc/common/protocolVersions.json
+++ b/data/pc/common/protocolVersions.json
@@ -1,4 +1,12 @@
 [
+  {
+    "minecraftVersion": "1.21.2-pre1",
+    "version": 1073742037,
+    "dataVersion": 4073,
+    "usesNetty": true,
+    "majorVersion": "1.21",
+    "releaseType": "snapshot"
+  },
   {
     "minecraftVersion": "24w40a",
     "version": 1073742036,