diff --git a/changelog/unreleased/PR#4021-update-org-apache-commons-commons-lang3.yml b/changelog/unreleased/PR#4021-update-org-apache-commons-commons-lang3.yml
new file mode 100644
index 00000000000..eff1d721c3e
--- /dev/null
+++ b/changelog/unreleased/PR#4021-update-org-apache-commons-commons-lang3.yml
@@ -0,0 +1,7 @@
+title: Update org.apache.commons:commons-lang3 to v3.20.0
+type: dependency_update
+authors:
+- name: solrbot
+links:
+- name: PR#4021
+  url: https://github.com/apache/solr/pull/4021
diff --git a/versions.props b/versions.props
index b95645350ce..d3c7170d6db 100644
--- a/versions.props
+++ b/versions.props
@@ -46,7 +46,7 @@ org.apache.commons:commons-collections4=4.5.0
 org.apache.commons:commons-compress=1.28.0
 org.apache.commons:commons-configuration2=2.12.0
 org.apache.commons:commons-exec=1.5.0
-org.apache.commons:commons-lang3=3.19.0
+org.apache.commons:commons-lang3=3.20.0
 org.apache.commons:commons-math3=3.6.1
 org.apache.curator:*=5.9.0
 org.apache.hadoop.thirdparty:*=1.4.0