diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7eba0cb..beeb68b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.12.20, 2.13.14, 3.3.3]
+        scala: [2.12.20, 2.13.15, 3.3.3]
         java: [zulu@8]
     runs-on: ${{ matrix.os }}
     steps:
@@ -101,12 +101,12 @@ jobs:
           tar xf targets.tar
           rm targets.tar
 
-      - name: Download target directories (2.13.14)
+      - name: Download target directories (2.13.15)
         uses: actions/download-artifact@v4
         with:
-          name: target-${{ matrix.os }}-2.13.14-${{ matrix.java }}
+          name: target-${{ matrix.os }}-2.13.15-${{ matrix.java }}
 
-      - name: Inflate target directories (2.13.14)
+      - name: Inflate target directories (2.13.15)
         run: |
           tar xf targets.tar
           rm targets.tar
diff --git a/build.sbt b/build.sbt
index 6373d2c..4050e53 100644
--- a/build.sbt
+++ b/build.sbt
@@ -15,7 +15,7 @@ homepage := Some(url("http://sangria-graphql.org"))
 licenses := Seq(
   "Apache License, ASL Version 2.0" → url("http://www.apache.org/licenses/LICENSE-2.0"))
 
-ThisBuild / crossScalaVersions := Seq("2.12.20", "2.13.14", "3.3.3")
+ThisBuild / crossScalaVersions := Seq("2.12.20", "2.13.15", "3.3.3")
 ThisBuild / scalaVersion := crossScalaVersions.value.last
 ThisBuild / githubWorkflowPublishTargetBranches := List()
 ThisBuild / githubWorkflowBuildPreamble ++= List(