diff --git a/pom.xml b/pom.xml
index c56e550..46f5111 100644
--- a/pom.xml
+++ b/pom.xml
@@ -50,21 +50,15 @@
         </exclusion>
       </exclusions>
     </dependency>
-    <dependency>
-      <groupId>com.google.guava</groupId>
-      <artifactId>guava</artifactId>
-      <version>28.2-jre</version>
-      <scope>compile</scope>
-    </dependency>
     <dependency>
       <groupId>it.unimi.dsi</groupId>
       <artifactId>fastutil</artifactId>
-      <version>8.3.0</version>
+      <version>8.3.1</version>
     </dependency>
     <dependency>
       <groupId>it.cavallium</groupId>
       <artifactId>concurrent-locks</artifactId>
-      <version>1.0.5</version>
+      <version>1.0.8</version>
     </dependency>
     <dependency>
       <groupId>org.apache.commons</groupId>
@@ -77,6 +71,11 @@
       <version>20.1.0</version>
       <scope>compile</scope>
     </dependency>
+    <dependency>
+      <groupId>com.google.guava</groupId>
+      <artifactId>guava</artifactId>
+      <version>29.0-jre</version>
+    </dependency>
   </dependencies>
 
 
diff --git a/src/main/java/org/warp/commonutils/concurrency/executor/PermitReleasingCallableDecorator.java b/src/main/java/org/warp/commonutils/concurrency/executor/PermitReleasingCallableDecorator.java
index 90c7055..67ceedd 100644
--- a/src/main/java/org/warp/commonutils/concurrency/executor/PermitReleasingCallableDecorator.java
+++ b/src/main/java/org/warp/commonutils/concurrency/executor/PermitReleasingCallableDecorator.java
@@ -1,15 +1,15 @@
 package org.warp.commonutils.concurrency.executor;
 
 import java.util.concurrent.Callable;
-import javax.annotation.Nonnull;
+import org.jetbrains.annotations.NotNull;
 
 public final class PermitReleasingCallableDecorator<T> extends CallableDecorator<T> {
 
-	@Nonnull
+	@NotNull
 	private final QueueSizeUpdater queueSizeUpdater;
 
-	PermitReleasingCallableDecorator(@Nonnull final Callable<T> task,
-			@Nonnull final QueueSizeUpdater queueSizeUpdater) {
+	PermitReleasingCallableDecorator(@NotNull final Callable<T> task,
+			@NotNull final QueueSizeUpdater queueSizeUpdater) {
 		super(task);
 		this.queueSizeUpdater = queueSizeUpdater;
 	}
diff --git a/src/main/java/org/warp/commonutils/concurrency/executor/PermitReleasingRunnableDecorator.java b/src/main/java/org/warp/commonutils/concurrency/executor/PermitReleasingRunnableDecorator.java
index 349b21f..8efaa74 100644
--- a/src/main/java/org/warp/commonutils/concurrency/executor/PermitReleasingRunnableDecorator.java
+++ b/src/main/java/org/warp/commonutils/concurrency/executor/PermitReleasingRunnableDecorator.java
@@ -1,13 +1,13 @@
 package org.warp.commonutils.concurrency.executor;
 
-import javax.annotation.Nonnull;
+import org.jetbrains.annotations.NotNull;
 
 public final class PermitReleasingRunnableDecorator extends RunnableDecorator {
 
-	@Nonnull
+	@NotNull
 	private final QueueSizeUpdater queueSizeUpdater;
-	PermitReleasingRunnableDecorator(@Nonnull final Runnable task,
-			@Nonnull final QueueSizeUpdater queueSizeUpdater) {
+	PermitReleasingRunnableDecorator(@NotNull final Runnable task,
+			@NotNull final QueueSizeUpdater queueSizeUpdater) {
 		super(task);
 		this.queueSizeUpdater = queueSizeUpdater;
 	}