diff --git a/build.sbt b/build.sbt
index cdfa3915..e1664f1e 100644
--- a/build.sbt
+++ b/build.sbt
@@ -35,7 +35,7 @@ val scalaMinVer = "3.6"
 val log4jVer = "2.23.1"  // Updated from "2.22.1" - Security fix
 val scalaLoggingVer = "3.9.5"
 val scalaParColVer = "1.0.4"
-val commonsLang3Ver = "3.14.0"  // Keep current - 3.14.1 doesn't exist
+val commonsLang3Ver = "3.20.0"  // Keep current - 3.14.1 doesn't exist
 val commonsMath3Ver = "3.6.1"  // Keep current - 3.6.2 doesn't exist
 val commonsTextVer = "1.11.0"  // Updated from "1.10.0" - CRITICAL: Security fix (CVE-2022-42889)
 val commonsIoVer = "2.16.0"  // Updated from "2.15.1"