diff --git a/pom.xml b/pom.xml
index a402c55..89ef2ba 100644
--- a/pom.xml
+++ b/pom.xml
@@ -44,7 +44,7 @@
         <dependency>
             <groupId>org.spigotmc</groupId>
             <artifactId>spigot-api</artifactId>
-            <version>1.20.1-R0.1-SNAPSHOT</version>
+            <version>1.20.4-R0.1-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
diff --git a/src/main/java/de/diddiz/LogBlock/Updater.java b/src/main/java/de/diddiz/LogBlock/Updater.java
index 34653c0..b1a83f8 100644
--- a/src/main/java/de/diddiz/LogBlock/Updater.java
+++ b/src/main/java/de/diddiz/LogBlock/Updater.java
@@ -950,6 +950,11 @@ class Updater {
             renameMaterial("minecraft:grass_path", Material.DIRT_PATH);
         }
 
+        if (comparablePreviousMinecraftVersion.compareTo("1.20.4") < 0 && comparableCurrentMinecraftVersion.compareTo("1.20.4") >= 0) {
+            logblock.getLogger().info("[Updater] Upgrading Materials to 1.20.4");
+            renameMaterial("minecraft:grass", Material.SHORT_GRASS);
+        }
+
         config.set("previousMinecraftVersion", currentMinecraftVersion);
         logblock.saveConfig();
     }
diff --git a/src/main/java/de/diddiz/LogBlock/listeners/BlockSpreadLogging.java b/src/main/java/de/diddiz/LogBlock/listeners/BlockSpreadLogging.java
index ebcafa6..c2a1255 100644
--- a/src/main/java/de/diddiz/LogBlock/listeners/BlockSpreadLogging.java
+++ b/src/main/java/de/diddiz/LogBlock/listeners/BlockSpreadLogging.java
@@ -29,7 +29,7 @@ public class BlockSpreadLogging extends LoggingListener {
         World world = event.getNewState().getWorld();
         Material type = event.getNewState().getType();
 
-        if (type == Material.GRASS) {
+        if (type == Material.SHORT_GRASS) {
             if (!isLogging(world, Logging.GRASSGROWTH)) {
                 return;
             }
diff --git a/src/main/java/de/diddiz/LogBlock/util/BukkitUtils.java b/src/main/java/de/diddiz/LogBlock/util/BukkitUtils.java
index 86d6ed5..c44e021 100644
--- a/src/main/java/de/diddiz/LogBlock/util/BukkitUtils.java
+++ b/src/main/java/de/diddiz/LogBlock/util/BukkitUtils.java
@@ -211,7 +211,7 @@ public class BukkitUtils {
 
         singleBlockPlants = new HashSet<>();
         singleBlockPlants.addAll(smallFlowers);
-        singleBlockPlants.add(Material.GRASS);
+        singleBlockPlants.add(Material.SHORT_GRASS);
         singleBlockPlants.add(Material.FERN);
         singleBlockPlants.add(Material.DEAD_BUSH);
         singleBlockPlants.add(Material.BROWN_MUSHROOM);
@@ -314,7 +314,7 @@ public class BukkitUtils {
         fallingEntityKillers.add(Material.REPEATER);
         fallingEntityKillers.add(Material.COMPARATOR);
         fallingEntityKillers.add(Material.DAYLIGHT_DETECTOR);
-        fallingEntityKillers.remove(Material.GRASS);
+        fallingEntityKillers.remove(Material.SHORT_GRASS);
         fallingEntityKillers.remove(Material.NETHER_SPROUTS);
 
         // Container Blocks