diff --git a/build.sc b/build.sc
index 5e7634f..b2ca6f3 100644
--- a/build.sc
+++ b/build.sc
@@ -6,7 +6,7 @@ import de.tobiasroeser.mill.vcs.version.VcsVersion
 
 import com.github.lolgab.mill.mima._
 
-val scala212 = "2.12.17"
+val scala212 = "2.12.20"
 val scala213 = "2.13.10"
 val scala3 = "3.3.1"