diff --git a/common/src/main/java/org/embeddedt/modernfix/common/mixin/perf/resourcepacks/ReloadableResourceManagerMixin.java b/common/src/main/java/org/embeddedt/modernfix/common/mixin/perf/resourcepacks/ReloadableResourceManagerMixin.java
new file mode 100644
index 00000000..9250fcbc
--- /dev/null
+++ b/common/src/main/java/org/embeddedt/modernfix/common/mixin/perf/resourcepacks/ReloadableResourceManagerMixin.java
@@ -0,0 +1,28 @@
+package org.embeddedt.modernfix.common.mixin.perf.resourcepacks;
+
+import net.minecraft.server.packs.PackResources;
+import net.minecraft.server.packs.resources.SimpleReloadableResourceManager;
+import org.embeddedt.modernfix.ModernFix;
+import org.embeddedt.modernfix.resources.ICachingResourcePack;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+import java.util.List;
+
+@Mixin(SimpleReloadableResourceManager.class)
+public class ReloadableResourceManagerMixin {
+    @Shadow @Final private List<PackResources> packs;
+
+    @Inject(method = "createReload", at = @At("HEAD"))
+    private void invalidateResourceCaches(CallbackInfoReturnable<?> cir) {
+        ModernFix.LOGGER.info("Invalidating pack caches");
+        for(PackResources pack : this.packs) {
+            if(pack instanceof ICachingResourcePack)
+                ((ICachingResourcePack)pack).invalidateCache();
+        }
+    }
+}
diff --git a/common/src/main/java/org/embeddedt/modernfix/resources/ICachingResourcePack.java b/common/src/main/java/org/embeddedt/modernfix/resources/ICachingResourcePack.java
new file mode 100644
index 00000000..a9e42bde
--- /dev/null
+++ b/common/src/main/java/org/embeddedt/modernfix/resources/ICachingResourcePack.java
@@ -0,0 +1,5 @@
+package org.embeddedt.modernfix.resources;
+
+public interface ICachingResourcePack {
+    void invalidateCache();
+}
diff --git a/fabric/src/main/java/org/embeddedt/modernfix/fabric/mixin/perf/fabric_resourcepacks/ModNioResourcePackMixin.java b/fabric/src/main/java/org/embeddedt/modernfix/fabric/mixin/perf/resourcepacks/ModNioResourcePackMixin.java
similarity index 88%
rename from fabric/src/main/java/org/embeddedt/modernfix/fabric/mixin/perf/fabric_resourcepacks/ModNioResourcePackMixin.java
rename to fabric/src/main/java/org/embeddedt/modernfix/fabric/mixin/perf/resourcepacks/ModNioResourcePackMixin.java
index 1ff34cd7..c839cdd6 100644
--- a/fabric/src/main/java/org/embeddedt/modernfix/fabric/mixin/perf/fabric_resourcepacks/ModNioResourcePackMixin.java
+++ b/fabric/src/main/java/org/embeddedt/modernfix/fabric/mixin/perf/resourcepacks/ModNioResourcePackMixin.java
@@ -1,8 +1,9 @@
-package org.embeddedt.modernfix.fabric.mixin.perf.fabric_resourcepacks;
+package org.embeddedt.modernfix.fabric.mixin.perf.resourcepacks;
 
 import net.fabricmc.fabric.impl.resource.loader.ModNioResourcePack;
 import net.minecraft.server.packs.PackType;
 import org.embeddedt.modernfix.annotation.RequiresMod;
+import org.embeddedt.modernfix.resources.ICachingResourcePack;
 import org.embeddedt.modernfix.resources.PackResourcesCacheEngine;
 import org.spongepowered.asm.mixin.Final;
 import org.spongepowered.asm.mixin.Mixin;
@@ -19,7 +20,7 @@ import java.util.Set;
 
 @Mixin(ModNioResourcePack.class)
 @RequiresMod("fabric-resource-loader-v0")
-public abstract class ModNioResourcePackMixin {
+public abstract class ModNioResourcePackMixin implements ICachingResourcePack {
     @Shadow public abstract Set<String> getNamespaces(PackType type);
 
     @Shadow @Final private Path basePath;
@@ -27,6 +28,12 @@ public abstract class ModNioResourcePackMixin {
 
     @Inject(method = "<init>", at = @At("RETURN"))
     private void cacheResources(CallbackInfo ci) {
+        invalidateCache();
+    }
+
+    @Override
+    public void invalidateCache() {
+        this.cacheEngine = null;
         this.cacheEngine = new PackResourcesCacheEngine(this::getNamespaces, (type, namespace) -> {
             return basePath.resolve(type.getDirectory()).resolve(namespace);
         });
diff --git a/forge/src/main/java/org/embeddedt/modernfix/forge/mixin/perf/resourcepacks/ModFileResourcePackMixin.java b/forge/src/main/java/org/embeddedt/modernfix/forge/mixin/perf/resourcepacks/ModFileResourcePackMixin.java
index d8cc1e46..8f7bf461 100644
--- a/forge/src/main/java/org/embeddedt/modernfix/forge/mixin/perf/resourcepacks/ModFileResourcePackMixin.java
+++ b/forge/src/main/java/org/embeddedt/modernfix/forge/mixin/perf/resourcepacks/ModFileResourcePackMixin.java
@@ -5,6 +5,7 @@ import net.minecraft.resources.ResourceLocation;
 import net.minecraft.server.packs.ResourcePackFileNotFoundException;
 import net.minecraftforge.fml.loading.moddiscovery.ModFile;
 import net.minecraftforge.fml.packs.ModFileResourcePack;
+import org.embeddedt.modernfix.resources.ICachingResourcePack;
 import org.embeddedt.modernfix.resources.PackResourcesCacheEngine;
 import org.embeddedt.modernfix.util.PackTypeHelper;
 import org.spongepowered.asm.mixin.Final;
@@ -23,7 +24,7 @@ import java.util.*;
 import java.util.function.Predicate;
 
 @Mixin(ModFileResourcePack.class)
-public abstract class ModFileResourcePackMixin {
+public abstract class ModFileResourcePackMixin implements ICachingResourcePack {
     @Shadow public abstract Set<String> getNamespaces(PackType type);
 
     @Shadow(remap = false) @Final private ModFile modFile;
@@ -32,10 +33,17 @@ public abstract class ModFileResourcePackMixin {
 
     @Inject(method = "<init>", at = @At("TAIL"))
     private void cacheResources(ModFile modFile, CallbackInfo ci) {
+        invalidateCache();
+    }
+
+    @Override
+    public void invalidateCache() {
+        this.cacheEngine = null;
         this.cacheEngine = new PackResourcesCacheEngine(this::getNamespaces, (type, namespace) -> {
             return modFile.getLocator().findPath(modFile, type.getDirectory(), namespace);
         });
     }
+
     @Inject(method = "getNamespaces", at = @At("HEAD"), cancellable = true)
     private void useCacheForNamespaces(PackType type, CallbackInfoReturnable<Set<String>> cir) {
         if(cacheEngine != null) {