diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 107d475c..68004a4b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.11.12, 2.12.11, 2.13.3]
+        scala: [2.11.12, 2.12.13, 2.13.5]
         java: [adopt@1.8]
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/build.sbt b/build.sbt
index a1cc052e..a7646110 100644
--- a/build.sbt
+++ b/build.sbt
@@ -3,7 +3,7 @@ val catsEffectVersion = "2.0.0"
 val utilVersion = "21.2.0"
 val finagleVersion = "21.2.0"
 
-crossScalaVersions in ThisBuild := Seq("2.11.12", "2.12.11", "2.13.3")
+crossScalaVersions in ThisBuild := Seq("2.11.12", "2.12.13", "2.13.5")
 scalaVersion in ThisBuild := crossScalaVersions.value.last
 
 organization in ThisBuild := "io.catbird"