diff --git a/src/main/java/net/rptools/maptool/client/AppSetup.java b/src/main/java/net/rptools/maptool/client/AppSetup.java
index 5543850fac..3bbf22149e 100644
--- a/src/main/java/net/rptools/maptool/client/AppSetup.java
+++ b/src/main/java/net/rptools/maptool/client/AppSetup.java
@@ -20,6 +20,7 @@
 import java.net.URL;
 import java.util.Set;
 import java.util.regex.Pattern;
+import java.util.stream.Collectors;
 import javax.swing.*;
 import net.rptools.lib.FileUtil;
 import net.rptools.maptool.model.AssetManager;
@@ -28,7 +29,8 @@
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.reflections.Reflections;
-import org.reflections.scanners.ResourcesScanner;
+import org.reflections.scanners.Scanners;
+import org.reflections.util.ConfigurationBuilder;
 
 /** Executes only the first time the application is run. */
 public class AppSetup {
@@ -67,10 +69,15 @@ private static void installPredefinedProperties() {
   }
 
   private static void installUsingReflection(String source, File dir, String name) {
-    if (isNotEmpty(dir)) return;
-
-    Reflections reflections = new Reflections(source, new ResourcesScanner());
-    Set<String> resourcePathSet = reflections.getResources(Pattern.compile(".*"));
+    if (isNotEmpty(dir)) {
+      return;
+    }
+    Set<String> resourcePathSet =
+        new Reflections(
+                new ConfigurationBuilder().forPackage(source).setScanners(Scanners.Resources))
+            .getResources(Pattern.compile(".*")).stream()
+                .filter(s -> s.startsWith(source))
+                .collect(Collectors.toSet());
 
     for (String resourcePath : resourcePathSet) {
       URL inputUrl = AppSetup.class.getClassLoader().getResource(resourcePath);
@@ -97,9 +104,18 @@ private static boolean isNotEmpty(File dir) {
    */
   public static void installDefaultUIThemes() {
     if (!themesInstalled) {
-      Reflections reflections =
-          new Reflections(AppConstants.DEFAULT_UI_THEMES, new ResourcesScanner());
-      Set<String> resourcePathSet = reflections.getResources(Pattern.compile(".*\\.theme"));
+      Set<String> resourcePathSet =
+          new Reflections(
+                  new ConfigurationBuilder()
+                      .forPackage(AppConstants.DEFAULT_UI_THEMES)
+                      .setScanners(Scanners.Resources))
+              .getResources(Pattern.compile(".*")).stream()
+                  .filter(s -> s.startsWith(AppConstants.DEFAULT_UI_THEMES))
+                  .collect(Collectors.toSet())
+                  .stream()
+                  .filter(s -> s.endsWith(".theme"))
+                  .filter(s -> s.startsWith(AppConstants.DEFAULT_UI_THEMES))
+                  .collect(Collectors.toSet());
 
       for (String resourcePath : resourcePathSet) {
         URL inputUrl = AppSetup.class.getClassLoader().getResource(resourcePath);