diff --git a/build.sbt b/build.sbt
index 4f2d2452..068b2c94 100644
--- a/build.sbt
+++ b/build.sbt
@@ -107,7 +107,7 @@ ThisBuild / developers := List(
 // scala versions
 val scala3 = "3.3.3"
 val scala213 = "2.13.14"
-val scala212 = "2.12.19"
+val scala212 = "2.12.20"
 val scalaDefault = scala213
 val scala3Projects = List(
   "shared",