diff --git a/Launcher/source-authlib/minecraft/MinecraftProfileTexture.java b/Launcher/source-authlib/minecraft/MinecraftProfileTexture.java
index c3e30a6..cc13bc0 100644
--- a/Launcher/source-authlib/minecraft/MinecraftProfileTexture.java
+++ b/Launcher/source-authlib/minecraft/MinecraftProfileTexture.java
@@ -4,7 +4,7 @@
 import java.util.EnumSet;
 import java.util.Set;
 
-public final class MinecraftProfileTexture {
+public class MinecraftProfileTexture {
     public static final Set<Type> PROFILE_TEXTURE_TYPES = Collections.unmodifiableSet(EnumSet.allOf(Type.class));
     public static final int PROFILE_TEXTURE_COUNT = PROFILE_TEXTURE_TYPES.size();
 
diff --git a/Launcher/source-authlib/yggdrasil/CompatBridge.java b/Launcher/source-authlib/yggdrasil/CompatBridge.java
index 225f00a..e701174 100644
--- a/Launcher/source-authlib/yggdrasil/CompatBridge.java
+++ b/Launcher/source-authlib/yggdrasil/CompatBridge.java
@@ -14,7 +14,7 @@
 
 // Used to bypass Launcher's class name obfuscation and access API
 @LauncherAPI
-public final class CompatBridge {
+public class CompatBridge {
     public static final int PROFILES_MAX_BATCH_SIZE = BatchProfileByUsernameRequest.MAX_BATCH_SIZE;
 
     private CompatBridge() {
diff --git a/Launcher/source-authlib/yggdrasil/CompatProfile.java b/Launcher/source-authlib/yggdrasil/CompatProfile.java
index 6289a7d..473e571 100644
--- a/Launcher/source-authlib/yggdrasil/CompatProfile.java
+++ b/Launcher/source-authlib/yggdrasil/CompatProfile.java
@@ -8,7 +8,7 @@
 import launcher.helper.SecurityHelper;
 
 @LauncherAPI
-public final class CompatProfile {
+public class CompatProfile {
     public static final String SKIN_URL_PROPERTY = ClientLauncher.SKIN_URL_PROPERTY;
     public static final String SKIN_DIGEST_PROPERTY = ClientLauncher.SKIN_DIGEST_PROPERTY;
     public static final String CLOAK_URL_PROPERTY = ClientLauncher.CLOAK_URL_PROPERTY;
diff --git a/Launcher/source-authlib/yggdrasil/LegacyBridge.java b/Launcher/source-authlib/yggdrasil/LegacyBridge.java
index 7cb5747..2e17530 100644
--- a/Launcher/source-authlib/yggdrasil/LegacyBridge.java
+++ b/Launcher/source-authlib/yggdrasil/LegacyBridge.java
@@ -10,7 +10,7 @@
 
 // Used by 1.6.4 and below versions
 @LauncherAPI
-public final class LegacyBridge {
+public class LegacyBridge {
     private LegacyBridge() {
     }
 
diff --git a/Launcher/source-authlib/yggdrasil/YggdrasilAuthenticationService.java b/Launcher/source-authlib/yggdrasil/YggdrasilAuthenticationService.java
index d30bfde..53ebe91 100644
--- a/Launcher/source-authlib/yggdrasil/YggdrasilAuthenticationService.java
+++ b/Launcher/source-authlib/yggdrasil/YggdrasilAuthenticationService.java
@@ -9,7 +9,7 @@
 import com.mojang.authlib.minecraft.MinecraftSessionService;
 import launcher.helper.LogHelper;
 
-public final class YggdrasilAuthenticationService implements AuthenticationService {
+public class YggdrasilAuthenticationService implements AuthenticationService {
     @SuppressWarnings("UnusedParameters")
     public YggdrasilAuthenticationService(Proxy proxy, String clientToken) {
         LogHelper.debug("Patched AuthenticationService created: '%s'", clientToken);
diff --git a/Launcher/source-authlib/yggdrasil/YggdrasilGameProfileRepository.java b/Launcher/source-authlib/yggdrasil/YggdrasilGameProfileRepository.java
index 1232bad..6bb4f04 100644
--- a/Launcher/source-authlib/yggdrasil/YggdrasilGameProfileRepository.java
+++ b/Launcher/source-authlib/yggdrasil/YggdrasilGameProfileRepository.java
@@ -12,7 +12,7 @@
 import launcher.helper.VerifyHelper;
 import launcher.request.uuid.BatchProfileByUsernameRequest;
 
-public final class YggdrasilGameProfileRepository implements GameProfileRepository {
+public class YggdrasilGameProfileRepository implements GameProfileRepository {
     private static final long BUSY_WAIT_MS = VerifyHelper.verifyLong(
         Long.parseLong(System.getProperty("launcher.authlib.busyWait", Long.toString(100L))),
         VerifyHelper.L_NOT_NEGATIVE, "launcher.authlib.busyWait can't be < 0");
@@ -24,6 +24,10 @@
         LogHelper.debug("Patched GameProfileRepository created");
     }
 
+    public YggdrasilGameProfileRepository(YggdrasilAuthenticationService authenticationService) {
+        LogHelper.debug("Patched GameProfileRepository created");
+    }
+
     @Override
     public void findProfilesByNames(String[] usernames, Agent agent, ProfileLookupCallback callback) {
         int offset = 0;
diff --git a/Launcher/source-authlib/yggdrasil/YggdrasilMinecraftSessionService.java b/Launcher/source-authlib/yggdrasil/YggdrasilMinecraftSessionService.java
index b46d3b5..ab5e75a 100644
--- a/Launcher/source-authlib/yggdrasil/YggdrasilMinecraftSessionService.java
+++ b/Launcher/source-authlib/yggdrasil/YggdrasilMinecraftSessionService.java
@@ -28,11 +28,11 @@
 import launcher.request.auth.JoinServerRequest;
 import launcher.request.uuid.ProfileByUUIDRequest;
 
-public final class YggdrasilMinecraftSessionService extends BaseMinecraftSessionService {
+public class YggdrasilMinecraftSessionService extends BaseMinecraftSessionService {
     public static final JsonParser JSON_PARSER = new JsonParser();
     public static final boolean NO_TEXTURES = Boolean.parseBoolean("launcher.authlib.noTextures");
 
-    public YggdrasilMinecraftSessionService(AuthenticationService service) {
+    public YggdrasilMinecraftSessionService(YggdrasilAuthenticationService service) {
         super(service);
         LogHelper.debug("Patched MinecraftSessionService created");
     }