diff --git a/packages/types-known/src/upgrades/polkadot.ts b/packages/types-known/src/upgrades/polkadot.ts
index 3f95cd8a44..20c2669f55 100644
--- a/packages/types-known/src/upgrades/polkadot.ts
+++ b/packages/types-known/src/upgrades/polkadot.ts
@@ -9,7 +9,7 @@ const upgrades: ChainUpgradesRaw = {
     [0, 0], [29231, 1], [188836, 5], [199405, 6], [214264, 7],
     [244358, 8], [303079, 9], [314201, 10], [342400, 11], [443963, 12],
     [528470, 13], [687751, 14], [746085, 15], [787923, 16], [799302, 17],
-    [1205128, 18], [1603423, 23], [1733218, 24], [2005673, 25]
+    [1205128, 18], [1603423, 23], [1733218, 24], [2005673, 25], [2436698, 26]
   ]
 };