diff --git a/client/build.gradle b/client/build.gradle
index 269caef2..6e602f0c 100644
--- a/client/build.gradle
+++ b/client/build.gradle
@@ -37,7 +37,7 @@ dependencies {
     implementation('com.googlecode.json-simple:json-simple:1.1.1') {
         exclude module: 'junit'
     }
-    testImplementation('commons-io:commons-io:2.20.0')
+    testImplementation('commons-io:commons-io:2.21.0')
     testImplementation("org.mockito:mockito-core:5.+")
     testImplementation('org.junit.jupiter:junit-jupiter-engine:5.13.4')
     testImplementation('org.junit.jupiter:junit-jupiter-params:5.13.4')
diff --git a/server/manifestmergetool/build.gradle b/server/manifestmergetool/build.gradle
index b2137e4d..b834d46f 100644
--- a/server/manifestmergetool/build.gradle
+++ b/server/manifestmergetool/build.gradle
@@ -80,7 +80,7 @@ dependencies {
     implementation('org.apache.commons:commons-configuration2:2.11.0')
     implementation('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.junit.jupiter:junit-jupiter-engine:5.13.4')
 }