diff --git a/jfuse-api/src/main/java/org/cryptomator/jfuse/api/Fuse.java b/jfuse-api/src/main/java/org/cryptomator/jfuse/api/Fuse.java
index 37cf8c9b..d7d43701 100644
--- a/jfuse-api/src/main/java/org/cryptomator/jfuse/api/Fuse.java
+++ b/jfuse-api/src/main/java/org/cryptomator/jfuse/api/Fuse.java
@@ -43,7 +43,7 @@ public abstract class Fuse implements AutoCloseable {
 	/**
 	 * The memory session associated with the lifecycle of this Fuse instance.
 	 */
-	protected final Arena fuseArena = Arena.openShared();
+	protected final Arena fuseArena = Arena.ofShared();
 
 	/**
 	 * The file system operations invoked by this FUSE file system.
@@ -156,11 +156,9 @@ void waitForMountingToComplete(Path mountPoint, Future<Integer> fuseLoop) throws
 	@Blocking
 	private int fuseLoop(FuseMount mount) {
 		AtomicInteger result = new AtomicInteger();
-		fuseArena.scope().whileAlive(() -> {
-			int r = mount.loop();
-			result.set(r);
-		});
-		return result.get();
+		int r = mount.loop();
+		result.set(r);
+		return r;
 	}
 
 	/**
diff --git a/pom.xml b/pom.xml
index 1bfd2b60..039c3cd8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -79,7 +79,7 @@
 					<artifactId>maven-compiler-plugin</artifactId>
 					<version>3.10.1</version>
 					<configuration>
-						<release>20</release>
+						<release>21</release>
 						<encoding>UTF-8</encoding>
 						<showWarnings>true</showWarnings>
 						<compilerArgs>