diff --git a/gradle.properties b/gradle.properties
index 9ba7d4c..35bd2b4 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -3,9 +3,9 @@ org.gradle.jvmargs=-Xmx1G
 
 # Fabric Properties
     # check these on https://fabricmc.net/versions.html
-    minecraft_version=1.20.2
-    yarn_mappings=1.20.2+build.4
-    loader_version=0.14.22
+    minecraft_version=1.20.4
+    yarn_mappings=1.20.4+build.1
+    loader_version=0.15.1
 
 # Mod Properties
     mod_version = 3.1.2
@@ -13,7 +13,7 @@ org.gradle.jvmargs=-Xmx1G
     archives_base_name = grind-enchantments
 
 # Dependencies
-    fabric_api_version=0.90.0+1.20.2
+    fabric_api_version=0.91.2+1.20.4
     codec_config_api_version=1.0.2+1.19.3
     tax_free_levels_version=loom-SNAPSHOT
 
diff --git a/src/main/java/de/martenschaefer/grindenchantments/GrindEnchantments.java b/src/main/java/de/martenschaefer/grindenchantments/GrindEnchantments.java
index 73e1e11..db45fbd 100644
--- a/src/main/java/de/martenschaefer/grindenchantments/GrindEnchantments.java
+++ b/src/main/java/de/martenschaefer/grindenchantments/GrindEnchantments.java
@@ -68,7 +68,7 @@ public static ItemStack addLevelCostLore(ItemStack stack, IntSupplier cost, bool
         MutableText text = Text.literal("Enchantment cost: " + cost.getAsInt())
             .formatted(canTakeItem ? Formatting.GREEN : Formatting.RED);
 
-        lore.add(NbtString.of(Text.Serializer.toJson(text)));
+        lore.add(NbtString.of(Text.Serialization.toJsonString(text)));
         return changed;
     }