diff --git a/pom.xml b/pom.xml
index 03f9533..8b5d413 100644
--- a/pom.xml
+++ b/pom.xml
@@ -25,7 +25,7 @@
         <httpmime.version>4.5.13</httpmime.version>
         <lombok.version>1.18.24</lombok.version>
         <junit.version>5.8.2</junit.version>
-        <assertj.version>3.18.1</assertj.version>
+        <assertj.version>3.23.1</assertj.version>
     </properties>
 
     <dependencies>