diff --git a/overviewer_core/src/mc_id.h b/overviewer_core/src/mc_id.h
index 4764352..52c358d 100644
--- a/overviewer_core/src/mc_id.h
+++ b/overviewer_core/src/mc_id.h
@@ -409,6 +409,8 @@ enum mc_block_id {
     block_packed_mud = 1122,
     block_mud_bricks = 1123,
     block_mud_brick_slab = 1124,
+    block_mangrove_roots = 1125,
+    block_mangrove_log = 1126,
 
     // adding a gap in the numbering of walls to keep them all
     // in one numbering block starting at 1792
diff --git a/overviewer_core/src/overviewer.h b/overviewer_core/src/overviewer.h
index c77c68c..594585e 100644
--- a/overviewer_core/src/overviewer.h
+++ b/overviewer_core/src/overviewer.h
@@ -31,7 +31,7 @@
 
 // increment this value if you've made a change to the c extension
 // and want to force users to rebuild
-#define OVERVIEWER_EXTENSION_VERSION 111
+#define OVERVIEWER_EXTENSION_VERSION 112
 
 #include <stdbool.h>
 #include <stdint.h>
diff --git a/overviewer_core/textures.py b/overviewer_core/textures.py
index 7124f6f..e6b36b0 100644
--- a/overviewer_core/textures.py
+++ b/overviewer_core/textures.py
@@ -1097,7 +1097,7 @@ block(blockid=15, top_image="assets/minecraft/textures/block/iron_ore.png")
 # coal ore
 block(blockid=16, top_image="assets/minecraft/textures/block/coal_ore.png")
 
-@material(blockid=[17, 162, 11306, 11307, 11308, 11309, 11310, 11311, 1008, 1009], 
+@material(blockid=[17, 162, 11306, 11307, 11308, 11309, 11310, 11311, 1008, 1009, 1126],
           data=list(range(12)), solid=True)
 def wood(self, blockid, data):
     # extract orientation and wood type frorm data bits
@@ -1163,7 +1163,11 @@ def wood(self, blockid, data):
             1: ("stripped_warped_stem.png", None),
             2: ("crimson_stem.png", None),
             3: ("stripped_crimson_stem.png", None),
-        }
+        },
+        1126: {
+            0: ("mangrove_log_top.png", "mangrove_log.png"),
+            1: ("stripped_mangrove_log_top.png", "stripped_mangrove_log.png"),
+        },
     }
 
     top_f, side_f = wood_tex[blockid].get(wood_type, wood_tex[blockid][0])
@@ -1200,6 +1204,8 @@ def leaves(self, blockid, data):
         t = self.load_image_texture("assets/minecraft/textures/block/flowering_azalea_leaves.png")
     elif (blockid, data) == (18, 7):
         t = self.load_image_texture("assets/minecraft/textures/block/azalea_leaves.png")
+    elif (blockid, data) == (18, 8):
+        t = self.load_image_texture("assets/minecraft/textures/block/mangrove_leaves.png")
     return self.build_block(t, t)
 
 # sponge
@@ -6380,3 +6386,5 @@ def spore_blossom(self, blockid, data):
 block(blockid=1121, top_image="assets/minecraft/textures/block/mud.png")
 block(blockid=1122, top_image="assets/minecraft/textures/block/packed_mud.png")
 block(blockid=1123, top_image="assets/minecraft/textures/block/mud_bricks.png")
+block(blockid=1125, top_image="assets/minecraft/textures/block/mangrove_roots_top.png",
+      side_image="assets/minecraft/textures/block/mangrove_roots_side.png")
diff --git a/overviewer_core/world.py b/overviewer_core/world.py
index 3f04b0b..17839f5 100644
--- a/overviewer_core/world.py
+++ b/overviewer_core/world.py
@@ -345,6 +345,7 @@ class RegionSet(object):
             'minecraft:dark_oak_leaves': (18, 5),
             'minecraft:flowering_azalea_leaves': (18, 6),
             'minecraft:azalea_leaves': (18, 7),
+            'minecraft:mangrove_leaves': (18, 8),
             'minecraft:sponge': (19, 0),
             'minecraft:wet_sponge': (19, 1),
             'minecraft:glass': (20, 0),
@@ -868,6 +869,9 @@ class RegionSet(object):
             'minecraft:packed_mud': (1122, 0),
             'minecraft:mud_bricks': (1123, 0),
             'minecraft:mud_brick_slab': (1124, 0),
+            'minecraft:mangrove_roots': (1125, 0),
+            'minecraft:mangrove_log': (1126, 0),
+            'minecraft:stripped_mangrove_log': (1126, 1),
 
             # New blocks
             'minecraft:carved_pumpkin': (11300, 0),