diff --git a/build.sc b/build.sc
index 3ac6bbc3f55..43d251e554e 100644
--- a/build.sc
+++ b/build.sc
@@ -153,7 +153,7 @@ object Deps {
   val log4j2Core = ivy"org.apache.logging.log4j:log4j-core:2.23.0"
   val osLib = ivy"com.lihaoyi::os-lib:0.10.0"
   val pprint = ivy"com.lihaoyi::pprint:0.8.1"
-  val mainargs = ivy"com.lihaoyi::mainargs:0.6.3"
+  val mainargs = ivy"com.lihaoyi::mainargs:0.7.0"
   val millModuledefsVersion = "0.10.9"
   val millModuledefsString = s"com.lihaoyi::mill-moduledefs:${millModuledefsVersion}"
   val millModuledefs = ivy"${millModuledefsString}"