diff --git a/pom.xml b/pom.xml
index e2a324a..50cda0e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -20,7 +20,7 @@
         <lombok.version>1.18.22</lombok.version>
         <junit-jupiter.version>5.8.2</junit-jupiter.version>
         <mockito-junit-jupiter.version>4.2.0</mockito-junit-jupiter.version>
-        <assertj-core.version>3.19.0</assertj-core.version>
+        <assertj-core.version>3.21.0</assertj-core.version>
     </properties>
 
     <dependencies>