diff --git a/build.sbt b/build.sbt
index 29e0295..618b859 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,6 +1,6 @@
 import Dependencies.Library
 
-val scala212 = "2.12.13"
+val scala212 = "2.12.15"
 val scala213 = "2.13.4"
 
 inThisBuild(