diff --git a/build.gradle b/build.gradle
index 958f45d..f3c0dfd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -155,7 +155,7 @@ dependencies {
 		exclude group: "javax.servlet", module: "javax.servlet-api" // upgrading breaks tests
 	}
 	testImplementation 'org.mockito:mockito-core:3.0.0'
-	testImplementation 'org.apache.commons:commons-lang3:3.5'
+	testImplementation 'org.apache.commons:commons-lang3:3.17.0'
 	testImplementation('com.github.kbase:java_test_utilities:0.1.0') {
 		exclude group: 'com.fasterxml.jackson.core'  // upgrading breaks stuff
 	}