diff --git a/build.gradle.kts b/build.gradle.kts
index ad4b83ef..be202b38 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -46,7 +46,7 @@ dependencies {
 
     testImplementation("ch.qos.logback:logback-classic:1.5.20")
     testImplementation("commons-codec:commons-codec:1.19.0")
-    testImplementation("commons-io:commons-io:2.20.0")
+    testImplementation("commons-io:commons-io:2.21.0")
     testImplementation("org.hamcrest:hamcrest:3.0")
     testImplementation("org.jetbrains:annotations:26.0.2-1")
     testImplementation("org.junit.jupiter:junit-jupiter-api:5.11.4")