diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index a723fff..86cddb7 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -9,7 +9,7 @@ jobs:
   build:
     strategy:
       matrix:
-        scalaVersion: ["2.12.15", "2.13.8"]
+        scalaVersion: ["2.12.18", "2.13.8"]
     runs-on: ubuntu-20.04
 
     steps:
diff --git a/build.sbt b/build.sbt
index d5882bb..cff71e8 100644
--- a/build.sbt
+++ b/build.sbt
@@ -3,7 +3,7 @@ import sbtcrossproject.CrossPlugin.autoImport.{ crossProject, CrossType }
 
 val monocleVersion = "2.0.4"
 val acyclicVersion = "0.2.0"
-val crossScalaVersionList = Seq("2.12.15", "2.13.8")
+val crossScalaVersionList = Seq("2.12.18", "2.13.8")
 
 val sharedSettings = Seq(
   crossScalaVersions := crossScalaVersionList,