diff --git a/jbrotli-examples/dropwizard/pom.xml b/jbrotli-examples/dropwizard/pom.xml
index 9102f85..8a43b2a 100644
--- a/jbrotli-examples/dropwizard/pom.xml
+++ b/jbrotli-examples/dropwizard/pom.xml
@@ -67,7 +67,7 @@
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
-      <version>2.2.0</version>
+      <version>3.20.2</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
diff --git a/jbrotli-examples/http-client/pom.xml b/jbrotli-examples/http-client/pom.xml
index cd4fc08..cc11c1d 100644
--- a/jbrotli-examples/http-client/pom.xml
+++ b/jbrotli-examples/http-client/pom.xml
@@ -81,7 +81,7 @@
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
-      <version>2.2.0</version>
+      <version>3.20.2</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
diff --git a/jbrotli-examples/simple-web-app/pom.xml b/jbrotli-examples/simple-web-app/pom.xml
index b9265a9..eb951d0 100644
--- a/jbrotli-examples/simple-web-app/pom.xml
+++ b/jbrotli-examples/simple-web-app/pom.xml
@@ -54,7 +54,7 @@
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
-      <version>2.2.0</version>
+      <version>3.20.2</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
diff --git a/jbrotli-examples/spring-boot/pom.xml b/jbrotli-examples/spring-boot/pom.xml
index 01caaf9..4aec5f7 100644
--- a/jbrotli-examples/spring-boot/pom.xml
+++ b/jbrotli-examples/spring-boot/pom.xml
@@ -48,7 +48,7 @@
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
-      <version>2.2.0</version>
+      <version>3.20.2</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
diff --git a/jbrotli-native/darwin-x86-amd64/pom.xml b/jbrotli-native/darwin-x86-amd64/pom.xml
index d88efde..3f3be24 100644
--- a/jbrotli-native/darwin-x86-amd64/pom.xml
+++ b/jbrotli-native/darwin-x86-amd64/pom.xml
@@ -29,7 +29,7 @@
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
-      <version>2.2.0</version>
+      <version>3.20.2</version>
       <scope>test</scope>
     </dependency>
 
diff --git a/jbrotli-native/linux-arm32-vfp-hflt/pom.xml b/jbrotli-native/linux-arm32-vfp-hflt/pom.xml
index d8f4f94..7715de4 100644
--- a/jbrotli-native/linux-arm32-vfp-hflt/pom.xml
+++ b/jbrotli-native/linux-arm32-vfp-hflt/pom.xml
@@ -29,7 +29,7 @@
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
-      <version>2.2.0</version>
+      <version>3.20.2</version>
       <scope>test</scope>
     </dependency>
 
diff --git a/jbrotli-native/linux-x86-amd64/pom.xml b/jbrotli-native/linux-x86-amd64/pom.xml
index 39e37a6..89d70a4 100644
--- a/jbrotli-native/linux-x86-amd64/pom.xml
+++ b/jbrotli-native/linux-x86-amd64/pom.xml
@@ -29,7 +29,7 @@
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
-      <version>2.2.0</version>
+      <version>3.20.2</version>
       <scope>test</scope>
     </dependency>
 
diff --git a/jbrotli-native/win32-x86-amd64/pom.xml b/jbrotli-native/win32-x86-amd64/pom.xml
index 0bf293f..4c71ed7 100644
--- a/jbrotli-native/win32-x86-amd64/pom.xml
+++ b/jbrotli-native/win32-x86-amd64/pom.xml
@@ -29,7 +29,7 @@
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
-      <version>2.2.0</version>
+      <version>3.20.2</version>
       <scope>test</scope>
     </dependency>
 
diff --git a/jbrotli-native/win32-x86/pom.xml b/jbrotli-native/win32-x86/pom.xml
index 6d6dd8a..a260921 100644
--- a/jbrotli-native/win32-x86/pom.xml
+++ b/jbrotli-native/win32-x86/pom.xml
@@ -29,7 +29,7 @@
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
-      <version>2.2.0</version>
+      <version>3.20.2</version>
       <scope>test</scope>
     </dependency>
 
diff --git a/jbrotli-servlet/pom.xml b/jbrotli-servlet/pom.xml
index 5bf0e94..a72bcac 100644
--- a/jbrotli-servlet/pom.xml
+++ b/jbrotli-servlet/pom.xml
@@ -42,7 +42,7 @@
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
-      <version>2.2.0</version>
+      <version>3.20.2</version>
       <scope>test</scope>
     </dependency>
     <dependency>
diff --git a/jbrotli/pom.xml b/jbrotli/pom.xml
index 95eebd3..da01437 100644
--- a/jbrotli/pom.xml
+++ b/jbrotli/pom.xml
@@ -208,7 +208,7 @@
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
-      <version>2.2.0</version>
+      <version>3.20.2</version>
       <scope>test</scope>
     </dependency>