diff --git a/build.sbt b/build.sbt
index 6e563cb1..1a15e021 100644
--- a/build.sbt
+++ b/build.sbt
@@ -23,7 +23,7 @@ addCommandAlias("fmtOnce", "all scalafmtSbt scalafmt test:scalafmt")
 addCommandAlias("fmt", "fmtOnce;fmtOnce")
 addCommandAlias("check", "all scalafmtSbtCheck scalafmtCheck test:scalafmtCheck")
 
-val zioVersion                 = "2.0.15"
+val zioVersion                 = "2.0.21"
 val zioSchemaVersion           = "0.4.13"
 val testcontainersVersion      = "1.18.3"
 val testcontainersScalaVersion = "0.41.3"