diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9d65fcd..2bd2d8a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.13.8, 3.2.1]
+        scala: [2.13.15, 3.2.1]
         java: [temurin@11]
     runs-on: ${{ matrix.os }}
     steps:
@@ -73,7 +73,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.13.8]
+        scala: [2.13.15]
         java: [temurin@11]
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/build.sbt b/build.sbt
index 31a848e..cbe24c5 100644
--- a/build.sbt
+++ b/build.sbt
@@ -11,7 +11,7 @@ val devs = List(
 
 inThisBuild(
   Seq(
-    scalaVersion           := "2.13.8",
+    scalaVersion           := "2.13.15",
     crossScalaVersions     := List(scalaVersion.value, "3.2.1"),
     versionScheme          := Some("semver-spec"),
     organization           := "com.stuart",