diff --git a/core/pom.xml b/core/pom.xml
index ee13b090..e8bbc07a 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -74,14 +74,14 @@
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-jdk14</artifactId>
-            <version>1.7.32</version>
+            <version>2.0.0-alpha5</version>
         </dependency>
 
         <!-- snakeyaml is present in Bungee, Spigot, Cauldron and so we could use this independent implementation -->
         <dependency>
             <groupId>net.md-5</groupId>
             <artifactId>bungeecord-config</artifactId>
-            <version>1.12-SNAPSHOT</version>
+            <version>1.16-R0.4</version>
             <exclusions>
                 <exclusion>
                     <groupId>*</groupId>
@@ -117,14 +117,26 @@
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>17.0</version>
+            <version>31.0.1-jre</version>
             <scope>provided</scope>
         </dependency>
 
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.2.4</version>
+            <version>2.8.9</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+            <version>2.0.0-alpha5</version>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-simple</artifactId>
+            <version>2.0.0-alpha5</version>
+            <scope>runtime</scope>
         </dependency>
     </dependencies>
 </project>
diff --git a/core/src/main/java/com/github/games647/fastlogin/core/CommonUtil.java b/core/src/main/java/com/github/games647/fastlogin/core/CommonUtil.java
index bb589a52..f2803c4b 100644
--- a/core/src/main/java/com/github/games647/fastlogin/core/CommonUtil.java
+++ b/core/src/main/java/com/github/games647/fastlogin/core/CommonUtil.java
@@ -35,7 +35,7 @@ import java.util.logging.Level;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.slf4j.impl.JDK14LoggerAdapter;
+import org.slf4j.jul.JDK14LoggerAdapter;
 
 public class CommonUtil {
 
diff --git a/core/src/main/java/com/github/games647/fastlogin/core/shared/FastLoginCore.java b/core/src/main/java/com/github/games647/fastlogin/core/shared/FastLoginCore.java
index 22b7bec4..f08b47d8 100644
--- a/core/src/main/java/com/github/games647/fastlogin/core/shared/FastLoginCore.java
+++ b/core/src/main/java/com/github/games647/fastlogin/core/shared/FastLoginCore.java
@@ -126,7 +126,7 @@ public class FastLoginCore<P extends C, C, T extends PlatformPlugin<C>> {
         Set<Proxy> proxies = config.getStringList("proxies")
                 .stream()
                 .map(HostAndPort::fromString)
-                .map(proxy -> new InetSocketAddress(proxy.getHostText(), proxy.getPort()))
+                .map(proxy -> new InetSocketAddress(proxy.getHost(), proxy.getPort()))
                 .map(sa -> new Proxy(Type.HTTP, sa))
                 .collect(toSet());
 
diff --git a/core/src/main/java/com/github/games647/fastlogin/core/shared/LoginSession.java b/core/src/main/java/com/github/games647/fastlogin/core/shared/LoginSession.java
index d87c44a7..a74a2e00 100644
--- a/core/src/main/java/com/github/games647/fastlogin/core/shared/LoginSession.java
+++ b/core/src/main/java/com/github/games647/fastlogin/core/shared/LoginSession.java
@@ -26,6 +26,7 @@
 package com.github.games647.fastlogin.core.shared;
 
 import com.github.games647.fastlogin.core.StoredProfile;
+import com.google.common.base.MoreObjects;
 import com.google.common.base.Objects;
 
 import java.util.UUID;
@@ -91,7 +92,7 @@ public abstract class LoginSession {
 
     @Override
     public synchronized String toString() {
-        return Objects.toStringHelper(this)
+        return MoreObjects.toStringHelper(this)
                 .add("profile", profile)
                 .add("requestUsername", requestUsername)
                 .add("username", username)