diff --git a/build.mill b/build.mill
index 7e85482df85..d25a3e600a6 100644
--- a/build.mill
+++ b/build.mill
@@ -86,7 +86,7 @@ object v extends Module {
   def defaultScalaVersion = scalaCrossToVersion(defaultCrossVersion)
 
   val jmhVersion = "1.37"
-  val osLib = mvn"com.lihaoyi::os-lib:0.10.7" // 0.11 requires Java 11
+  val osLib = mvn"com.lihaoyi::os-lib:0.11.8" // 0.11 requires Java 11
   val upickle = mvn"com.lihaoyi::upickle:3.3.1" // upickle 4.0 requires Scala 3.4 (we target Scala 3.3 LTS)
   val firtoolResolver = mvn"org.chipsalliance::firtool-resolver:2.0.1"
   val scalatest = mvn"org.scalatest::scalatest:3.2.19"