diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 57639fc1..b8268ce9 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, 2.13.8]
+        scala: [2.12.20, 2.13.8]
         java: [adopt@1.8]
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/build.sbt b/build.sbt
index 11f3fa99..f5cdf965 100644
--- a/build.sbt
+++ b/build.sbt
@@ -3,7 +3,7 @@ import scala.xml.{ Elem, Node => XmlNode, NodeSeq => XmlNodeSeq }
 import scala.xml.transform.{ RewriteRule, RuleTransformer }
 
 ThisBuild / organization := "io.circe"
-ThisBuild / crossScalaVersions := Seq("2.12.15", "2.13.8")
+ThisBuild / crossScalaVersions := Seq("2.12.20", "2.13.8")
 ThisBuild / githubWorkflowPublishTargetBranches := Nil
 ThisBuild / githubWorkflowBuild := Seq(
   WorkflowStep.Use(