diff --git a/common/build.gradle b/common/build.gradle
index 126b135..3650cab 100644
--- a/common/build.gradle
+++ b/common/build.gradle
@@ -3,7 +3,24 @@ plugins {
     id("net.neoforged.moddev")
 }
 
+// Vanilla depends on ASM 9.3, MDG makes that a 'strict' version constraint,
+// but Mixin and MixinExtras needs newer ASM so we override that here.
+configurations.configureEach {
+    resolutionStrategy.eachDependency { details ->
+        if (details.requested.group == "org.ow2.asm") {
+            details.useVersion(asm_version)
+            details.because("Mixin requires new ASM")
+        }
+    }
+}
+
 dependencies {
+    compileOnly "org.ow2.asm:asm:${asm_version}"
+    compileOnly "org.ow2.asm:asm-analysis:${asm_version}"
+    compileOnly "org.ow2.asm:asm-commons:${asm_version}"
+    compileOnly "org.ow2.asm:asm-tree:${asm_version}"
+    compileOnly "org.ow2.asm:asm-util:${asm_version}"
+    
     compileOnly("org.spongepowered:mixin:${mixin_version}")
     compileOnly(annotationProcessor("io.github.llamalad7:mixinextras-common:${mixinextras_version}"))
 }
diff --git a/gradle.properties b/gradle.properties
index 0c7b542..b0f8cf0 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -25,9 +25,9 @@ java_versions_fabric=>=21
 java_versions_neoforge=[21,)
 
 # Minecraft
-minecraft_version=1.21
-minecraft_versions_fabric=>1.20.6 <1.22
-minecraft_versions_neoforge=(1.20.6, 1.22)
+minecraft_version=1.21.3
+minecraft_versions_fabric=>1.21.1 <1.22
+minecraft_versions_neoforge=(1.21.1, 1.22)
 
 # Parchment https://parchmentmc.org/docs/getting-started#choose-a-version
 parchment_minecraft_version=1.21
@@ -36,15 +36,15 @@ parchment_version=2024.11.10
 # Fabric https://fabricmc.net/develop
 fabric_loader_version=0.16.9
 fabric_loader_versions=>=0.15.0
-fabric_api_version=0.102.0+1.21
+fabric_api_version=0.110.0+1.21.3
 fabric_api_versions=*
 
 # NeoForge https://projects.neoforged.net/neoforged/neoforge
 neoforge_loader_versions=[1,)
-neoforge_version=21.0.167
-neoforge_versions=[21.0.143, 22)
+neoforge_version=21.3.57
+neoforge_versions=[21.2.0, 22)
 # NeoForm https://projects.neoforged.net/neoforged/neoform
-neoform_version=1.21-20240613.152323
+neoform_version=1.21.3-20241023.131943
 
 # GitHub, Modrinth, CurseForge releases
 # Plural properties expect CSV lists
@@ -65,6 +65,8 @@ release_game_versions_neoforge=1.21,1.21.1
 mixin_version=0.8.7
 # MixinExtras https://github.com/LlamaLad7/MixinExtras/releases
 mixinextras_version=0.4.1
+# ASM https://mvnrepository.com/artifact/org.ow2.asm/asm
+asm_version=9.7
 
 # Plugins
 # Fabric Loom https://mvnrepository.com/artifact/net.fabricmc/fabric-loom