diff --git a/gradle.properties b/gradle.properties
index d362c9a..91930f7 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,3 +1,3 @@
-jwo.version = 2023.06.22
-lys.version = 2023.06.14
+jwo.version = 2023.10.01
+lys.version = 2023.09.26
 guice.version = 5.0.1
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index ccebba7..c1962a7 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 37aef8d..c30b486 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.1.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.3-bin.zip
 networkTimeout=10000
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
index 79a61d4..aeb74cb 100755
--- a/gradlew
+++ b/gradlew
@@ -85,9 +85,6 @@ done
 APP_BASE_NAME=${0##*/}
 APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
 
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
-
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
 
@@ -197,6 +194,10 @@ if "$cygwin" || "$msys" ; then
     done
 fi
 
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
 # Collect all arguments for the java command;
 #   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
 #     shell script including quotes and variable substitutions, so put them in
diff --git a/settings.gradle b/settings.gradle
index 6a5a3ae..95f1296 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -5,11 +5,6 @@ pluginManagement {
         }
         gradlePluginPortal()
     }
-
-//    plugins {
-//        id "net.woggioni.gradle.lombok" version "0.1"
-//        id "net.woggioni.gradle.multi-release-jar" version "0.1"
-//    }
 }
 
 dependencyResolutionManagement {
diff --git a/src/main/java/net/woggioni/jwo/JWO.java b/src/main/java/net/woggioni/jwo/JWO.java
index 34f303a..c48df8e 100644
--- a/src/main/java/net/woggioni/jwo/JWO.java
+++ b/src/main/java/net/woggioni/jwo/JWO.java
@@ -472,7 +472,7 @@ public class JWO {
 
     public static <T, U> T dynamicCast(U obj, Class<T> cls) {
         if(obj == null) return null;
-        else if(cls.isInstance(obj.getClass())) {
+        else if(cls.isInstance(obj)) {
             return (T) obj;
         } else {
             return null;