diff --git a/build.gradle.kts b/build.gradle.kts
index 77e5589..bf5ce60 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -45,8 +45,8 @@ dependencies {
 
 tasks {
     java {
-        sourceCompatibility = JavaVersion.VERSION_21
-        targetCompatibility = JavaVersion.VERSION_21
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
     }
 
     test {
diff --git a/src/main/java/com.voinearadu/logger/Logger.java b/src/main/java/com.voinearadu/logger/Logger.java
index 1596e3a..1925aa9 100644
--- a/src/main/java/com.voinearadu/logger/Logger.java
+++ b/src/main/java/com.voinearadu/logger/Logger.java
@@ -86,12 +86,17 @@ private static void log(Level level, Object object, @NotNull ConsoleColor color,
             id = caller.getSimpleName() + ".java";
         }
 
-        String log = switch (object) {
-            case null -> "null";
-            case Throwable throwable -> StackTraceUtils.toString(throwable);
-            case StackTraceElement[] stackTraceElements -> StackTraceUtils.toString(stackTraceElements);
-            default -> object.toString();
-        };
+        String log = null;
+
+        if (object == null) {
+            log = "null";
+        } else if (object instanceof Throwable) {
+            log = StackTraceUtils.toString((Throwable) object);
+        } else if (object instanceof StackTraceElement[]) {
+            log = StackTraceUtils.toString((StackTraceElement[]) object);
+        } else {
+            log = object.toString();
+        }
 
         org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(id);
         logger.info(color + log + ConsoleColor.RESET);