diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7c53f3e..f094bb7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.12.15, 2.13.7]
+        scala: [2.12.18, 2.13.7]
         java: [adopt@1.8]
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/build.sbt b/build.sbt
index ae653bd..cb30ec8 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,7 +1,7 @@
 import sbtcrossproject.{ CrossType, crossProject }
 
 ThisBuild / organization := "io.circe"
-ThisBuild / crossScalaVersions := List("2.12.15", "2.13.7")
+ThisBuild / crossScalaVersions := List("2.12.18", "2.13.7")
 ThisBuild / scalaVersion := crossScalaVersions.value.last
 
 ThisBuild / githubWorkflowJavaVersions := Seq("adopt@1.8")