diff --git a/biomes.h b/biomes.h
index eaf85ff5..4ae85295 100644
--- a/biomes.h
+++ b/biomes.h
@@ -35,7 +35,8 @@ enum MCVersion
     MC_1_21_1,
     MC_1_21_3,
     MC_1_21_WD, // Winter Drop, version TBA
-    MC_1_21 = MC_1_21_WD,
+    MC_1_21_9,
+    MC_1_21 = MC_1_21_9,
     MC_NEWEST = MC_1_21,
 };
 
diff --git a/finders.c b/finders.c
index 783d5ecc..a2204b09 100644
--- a/finders.c
+++ b/finders.c
@@ -817,12 +817,15 @@ int isStrongholdBiome(int mc, int id)
         return 0;
     case mushroom_field_shore:
         return mc >= MC_1_13;
-    case stone_shore:
+    case stone_shore: // stony_shore
         return mc <= MC_1_17;
     case bamboo_jungle:
     case bamboo_jungle_hills:
         // simulate MC-199298
         return mc <= MC_1_15 || mc >= MC_1_18;
+    case cherry_grove:
+        // see MC-278965
+        return mc >= MC_1_21_9;
     case mangrove_swamp:
     case deep_dark:
         return 0;