diff --git a/build.sc b/build.sc
index a607b7f..79bb564 100644
--- a/build.sc
+++ b/build.sc
@@ -8,8 +8,8 @@ import com.goyeau.mill.scalafix.ScalafixModule
 
 object Versions {
   val zioLoggingVersion     = "2.3.1"
-  val zioVersion            = "2.1.8"
-  val zioJsonVersion        = "0.7.2"
+  val zioVersion            = "2.1.9"
+  val zioJsonVersion        = "0.7.3"
   val zioConfigVersion      = "4.0.2"
   val sttpVersion           = "3.9.8"
   val scalafixModuleVersion = "0.6.0"