diff --git a/build.xml b/build.xml
index d07e2ede1c..9c90a8a08b 100644
--- a/build.xml
+++ b/build.xml
@@ -285,8 +285,8 @@ under the License.
     <dependency prefix="main.hamcrest" artifact="org.hamcrest:hamcrest:2.2" usage="main-tests"/>
     <dependency prefix="main.xmlunit" artifact="org.xmlunit:xmlunit-core:2.8.2" usage="main-tests"/>
     <dependency prefix="main.mockito" artifact="org.mockito:mockito-core:4.0.0" usage="main-tests"/>
-    <dependency prefix="main.byte-buddy" artifact="net.bytebuddy:byte-buddy:1.11.19" usage="main-tests"/>
-    <dependency prefix="main.byte-buddy-agent" artifact="net.bytebuddy:byte-buddy-agent:1.11.19" usage="main-tests"/>
+    <dependency prefix="main.byte-buddy" artifact="net.bytebuddy:byte-buddy:1.11.20" usage="main-tests"/>
+    <dependency prefix="main.byte-buddy-agent" artifact="net.bytebuddy:byte-buddy-agent:1.11.20" usage="main-tests"/>
     <dependency prefix="main.objenesis" artifact="org.objenesis:objenesis:3.1" usage="main-tests"/>
     <dependency prefix="main.log4j-core" artifact="org.apache.logging.log4j:log4j-core:2.14.1" usage="main-tests"/>
     <dependency prefix="main.commons-logging" artifact="commons-logging:commons-logging:1.2" usage="main-tests"/>
diff --git a/poi-ooxml-lite-agent/build.gradle b/poi-ooxml-lite-agent/build.gradle
index 658d93b148..7b6d8a3585 100644
--- a/poi-ooxml-lite-agent/build.gradle
+++ b/poi-ooxml-lite-agent/build.gradle
@@ -24,8 +24,8 @@ sourceSets {
 }
 
 dependencies {
-    api 'net.bytebuddy:byte-buddy:1.11.19'
-    api 'net.bytebuddy:byte-buddy-agent:1.11.19'
+    api 'net.bytebuddy:byte-buddy:1.11.20'
+    api 'net.bytebuddy:byte-buddy-agent:1.11.20'
     api "org.apache.xmlbeans:xmlbeans:${xmlbeansVersion}"
 }