diff --git a/build.sbt b/build.sbt
index 88a2ad3..52d6c74 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,7 +1,7 @@
 import com.softwaremill.SbtSoftwareMillCommon.commonSmlBuildSettings
 import com.softwaremill.Publish.ossPublishSettings
 
-val scala212 = "2.12.19"
+val scala212 = "2.12.21"
 val scala213 = "2.13.18"
 val scala30 = "3.4.1"