diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f0186e04..5dc60fdb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.13.6, 2.12.14, 3.0.2]
+        scala: [2.13.6, 2.12.15, 3.0.2]
         java: [adopt@1.8]
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/build.sbt b/build.sbt
index bca37e1a..c6baafd8 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,5 +1,5 @@
 ThisBuild / organization := "io.circe"
-ThisBuild / crossScalaVersions := Seq("2.13.6", "2.12.14", "3.0.2")
+ThisBuild / crossScalaVersions := Seq("2.13.6", "2.12.15", "3.0.2")
 ThisBuild / scalaVersion := crossScalaVersions.value.head
 ThisBuild / githubWorkflowPublishTargetBranches := Nil