diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0e3e99b..48379cf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [3.0.0-M3, 2.12.12, 2.13.3]
+        scala: [3.0.0-M3, 2.12.13, 2.13.4]
         java: [adopt@1.8]
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/build.sbt b/build.sbt
index 00779a0..d86e735 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("3.0.0-M3", "2.12.12", "2.13.3")
+ThisBuild / crossScalaVersions := Seq("3.0.0-M3", "2.12.13", "2.13.4")
 
 ThisBuild / githubWorkflowTargetBranches := Seq("series/1.x")