diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8e573db..b301bf4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [3.3.3, 2.12.19, 2.13.12]
+        scala: [3.3.3, 2.12.19, 2.13.15]
         java: [temurin@11]
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/build.sbt b/build.sbt
index a57d4f6..e954587 100644
--- a/build.sbt
+++ b/build.sbt
@@ -23,7 +23,7 @@ ThisBuild / organization := "com.codecommit"
 ThisBuild / publishGithubUser := "djspiewak"
 ThisBuild / publishFullName := "Daniel Spiewak"
 
-ThisBuild / crossScalaVersions := Seq("3.3.3", "2.12.19", "2.13.12")
+ThisBuild / crossScalaVersions := Seq("3.3.3", "2.12.19", "2.13.15")
 
 ThisBuild / githubWorkflowTargetBranches := Seq("series/0.x")