diff --git a/src/main/java/org/embeddedt/modernfix/util/ClassInfoManager.java b/src/main/java/org/embeddedt/modernfix/util/ClassInfoManager.java
index 34a6d53f..47dfae89 100644
--- a/src/main/java/org/embeddedt/modernfix/util/ClassInfoManager.java
+++ b/src/main/java/org/embeddedt/modernfix/util/ClassInfoManager.java
@@ -1,11 +1,17 @@
 package org.embeddedt.modernfix.util;
 
+import com.google.common.collect.ImmutableMap;
+import net.minecraftforge.fml.ModList;
+import net.minecraftforge.forgespi.language.IModFileInfo;
+import org.embeddedt.modernfix.ModernFix;
 import org.embeddedt.modernfix.core.ModernFixMixinPlugin;
 import org.spongepowered.asm.mixin.transformer.ClassInfo;
 
 import java.lang.reflect.Field;
-import java.util.Iterator;
+import java.util.HashMap;
 import java.util.Map;
+import java.util.jar.Attributes;
+import java.util.jar.Manifest;
 
 public class ClassInfoManager {
     private static Map<String, ClassInfo> classInfoCache = null;
@@ -27,5 +33,33 @@ public class ClassInfoManager {
         } catch(RuntimeException e) {
             e.printStackTrace();
         }
+
+        // Clear manifest entries
+        int numManifestsCleared = 0;
+        for(IModFileInfo mod : ModList.get().getModFiles()) {
+            Manifest manifest = mod.getFile().getSecureJar().getManifest();
+            if(manifest.getEntries() instanceof HashMap<String, Attributes> entryMap) {
+                for (Map.Entry<String, Attributes> entry : entryMap.entrySet()) {
+                    Attributes attributes = entry.getValue();
+                    if (attributes.size() == 1 && attributes.getValue("SHA-256-Digest") != null) {
+                        try {
+                            entry.setValue(EmptyAttributes.INSTANCE);
+                            numManifestsCleared++;
+                        } catch (RuntimeException ignored) {
+                        }
+                    }
+                }
+            }
+        }
+        if(numManifestsCleared > 0)
+            ModernFix.LOGGER.info("Cleared {} manifest attributes", numManifestsCleared);
+    }
+
+    static class EmptyAttributes extends Attributes {
+        public static final EmptyAttributes INSTANCE = new EmptyAttributes();
+        EmptyAttributes() {
+            super(1);
+            this.map = ImmutableMap.of();
+        }
     }
 }