diff --git a/build.gradle b/build.gradle
index 66f2109265..26a39cfc44 100644
--- a/build.gradle
+++ b/build.gradle
@@ -239,8 +239,8 @@ dependencies {
   implementation("com.github.FAForever.faf-java-commons:faf-commons-lobby:${commonsVersion}")
   implementation("com.google.guava:guava:33.0.0-jre")
   implementation("org.apache.commons:commons-compress:1.26.0")
-  implementation("net.java.dev.jna:jna:5.13.0")
-  implementation("net.java.dev.jna:jna-platform:5.13.0")
+  implementation("net.java.dev.jna:jna:5.14.0")
+  implementation("net.java.dev.jna:jna-platform:5.14.0")
   implementation("org.jetbrains:annotations:24.1.0")
   implementation("com.neovisionaries:nv-i18n:1.29")
   implementation("com.nativelibs4java:bridj:0.7.0")
diff --git a/src/main/java/com/faforever/client/os/Kernel32Ex.java b/src/main/java/com/faforever/client/os/Kernel32Ex.java
index 6576354b9a..ecc58d144b 100644
--- a/src/main/java/com/faforever/client/os/Kernel32Ex.java
+++ b/src/main/java/com/faforever/client/os/Kernel32Ex.java
@@ -15,7 +15,7 @@ interface Kernel32Ex extends Kernel32 {
    * @return If the function succeeds, the return value is the previous value of the specified offset. If the function
    * fails, the return value is zero. To get extended error information, call GetLastError.
    */
-  BOOL SetPriorityClass(HANDLE hProcess, DWORD dwPriorityClass);
+  boolean SetPriorityClass(HANDLE hProcess, DWORD dwPriorityClass);
 
   enum WindowsPriority {
     REALTIME_PRIORITY_CLASS(0x00000100),
diff --git a/src/main/java/com/faforever/client/os/OsWindows.java b/src/main/java/com/faforever/client/os/OsWindows.java
index b062ed79c2..c40c4ef5d6 100644
--- a/src/main/java/com/faforever/client/os/OsWindows.java
+++ b/src/main/java/com/faforever/client/os/OsWindows.java
@@ -5,7 +5,6 @@
 import com.sun.jna.platform.win32.Kernel32;
 import com.sun.jna.platform.win32.Shell32Util;
 import com.sun.jna.platform.win32.ShlObj;
-import com.sun.jna.platform.win32.WinDef.BOOL;
 import com.sun.jna.platform.win32.WinDef.DWORD;
 import com.sun.jna.platform.win32.WinNT;
 import com.sun.jna.platform.win32.WinNT.HANDLE;
@@ -116,8 +115,8 @@ private void setProcessPriority(Process process, WindowsPriority priority) {
     log.debug("Settings priority of process {} to {}", process.pid(), priority);
     try {
       DWORD dwPriorityClass = priority.dword();
-      BOOL success = Kernel32Ex.INSTANCE.SetPriorityClass(getProcessHandle(process), dwPriorityClass);
-      if (!success.booleanValue()) {
+      boolean success = Kernel32Ex.INSTANCE.SetPriorityClass(getProcessHandle(process), dwPriorityClass);
+      if (!success) {
         int lastError = Kernel32.INSTANCE.GetLastError();
         log.warn("Could not set priority of process {} (error {})", process.pid(), lastError);
       }