diff --git a/backend/build.gradle b/backend/build.gradle
index e8100388..19793f8d 100644
--- a/backend/build.gradle
+++ b/backend/build.gradle
@@ -133,7 +133,7 @@ subprojects {
         implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
         implementation "org.jetbrains.kotlin:kotlin-reflect"
 
-        implementation 'org.apache.commons:commons-lang3:3.20.0'
+        implementation 'org.apache.commons:commons-lang3:3.21.0'
 
         implementation("org.jsoup:jsoup:1.23.2")