diff --git a/build.gradle b/build.gradle
index cbf5d1d..88b0d2f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -12,6 +12,6 @@ repositories {
 }
 
 dependencies {
-    testCompile("org.assertj:assertj-core:3.13.2")
+    testCompile("org.assertj:assertj-core:3.20.1")
     testCompile("junit:junit:4.12")
 }