diff --git a/build.sbt b/build.sbt
index 8b956c9a..02786362 100644
--- a/build.sbt
+++ b/build.sbt
@@ -203,7 +203,7 @@ lazy val `quill-jdbc-zio` =
       libraryDependencies ++= Seq(
         // Needed for PGObject in JsonExtensions but not necessary if user is not using postgres
         "org.postgresql" % "postgresql" % "42.7.5" % "provided",
-        "dev.zio" %% "zio-json" % "0.7.8"
+        "dev.zio" %% "zio-json" % "0.7.21"
       ),
       Test / runMain / fork := true,
       Test / fork := true,