diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e99cd75..2c72314 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.13.12]
+        scala: [2.13.13]
         java: [temurin@8]
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/build.sbt b/build.sbt
index 1e12d31..788e7da 100644
--- a/build.sbt
+++ b/build.sbt
@@ -3,7 +3,7 @@ version := "0.1.0-SNAPSHOT"
 
 description := "An example GraphQL server written with akka-http, circe and sangria."
 
-ThisBuild / crossScalaVersions := Seq("2.13.12")
+ThisBuild / crossScalaVersions := Seq("2.13.13")
 ThisBuild / scalaVersion := crossScalaVersions.value.last
 ThisBuild / githubWorkflowPublishTargetBranches := List()