diff --git a/bukkit/pom.xml b/bukkit/pom.xml
index 2a4c44ab..ed28d118 100644
--- a/bukkit/pom.xml
+++ b/bukkit/pom.xml
@@ -165,7 +165,7 @@
         <dependency>
             <groupId>io.papermc.paper</groupId>
             <artifactId>paper-api</artifactId>
-            <version>1.19-R0.1-SNAPSHOT</version>
+            <version>1.19.4-R0.1-SNAPSHOT</version>
             <scope>provided</scope>
             <!-- Use our own newer api version -->
             <exclusions>
diff --git a/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/protocollib/ProtocolLibListener.java b/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/protocollib/ProtocolLibListener.java
index f963be3a..ac9cb7ab 100644
--- a/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/protocollib/ProtocolLibListener.java
+++ b/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/protocollib/ProtocolLibListener.java
@@ -250,7 +250,6 @@ public class ProtocolLibListener extends PacketAdapter {
             }
         }
 
-
         plugin.getLog().trace("GameProfile {} with {} connecting", sessionKey, username);
 
         packetEvent.getAsyncMarker().incrementProcessingDelay();
diff --git a/core/pom.xml b/core/pom.xml
index 06f1701a..6c5bf943 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -70,7 +70,7 @@
         <dependency>
             <groupId>com.zaxxer</groupId>
             <artifactId>HikariCP</artifactId>
-            <version>4.0.3</version>
+            <version>5.0.2-SNAPSHOT</version>
             <exclusions>
                 <!-- HikariCP uses an old version of this API that has a typo in the service interface -->
                 <!-- We will use the api provided by the jdk14 dependency -->
diff --git a/core/src/main/java/com/github/games647/fastlogin/core/storage/MySQLStorage.java b/core/src/main/java/com/github/games647/fastlogin/core/storage/MySQLStorage.java
index 135046bf..7547e09a 100644
--- a/core/src/main/java/com/github/games647/fastlogin/core/storage/MySQLStorage.java
+++ b/core/src/main/java/com/github/games647/fastlogin/core/storage/MySQLStorage.java
@@ -55,6 +55,9 @@ public class MySQLStorage extends SQLStorage {
         config.addDataSourceProperty("useSSL", useSSL);
         config.addDataSourceProperty("requireSSL", useSSL);
 
+        //enable leak detection of holding connections
+        config.setLeakDetectionThreshold(2000);
+
         // adding paranoid, hides hostname, username, version and so
         // could be useful for hiding server details
         config.addDataSourceProperty("paranoid", true);