diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 479e4bb7..4d3b0f17 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ jobs:
         scala: ['2.12', '2.13']
         include:
           - scala: '2.12'
-            scala-version: 2.12.14
+            scala-version: 2.12.15
           - scala: '2.13'
             scala-version: 2.13.6
 
diff --git a/build.sbt b/build.sbt
index cd3513fa..c88058d1 100644
--- a/build.sbt
+++ b/build.sbt
@@ -3,8 +3,8 @@ import spray.boilerplate.BoilerplatePlugin
 
 ThisBuild / organization := "com.velocidi"
 
-ThisBuild / crossScalaVersions := Seq("2.12.14", "2.13.6")
-ThisBuild / scalaVersion := "2.12.14"
+ThisBuild / crossScalaVersions := Seq("2.12.15", "2.13.6")
+ThisBuild / scalaVersion := "2.12.15"
 
 def module(project: Project, moduleName: String) =
   (project in file(moduleName))
diff --git a/project/plugins.sbt b/project/plugins.sbt
index bb13050d..dd67e594 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,4 +1,4 @@
-addSbtPlugin("ch.epfl.scala"  % "sbt-scalafix"    % "0.9.29")
+addSbtPlugin("ch.epfl.scala"  % "sbt-scalafix"    % "0.9.31")
 addSbtPlugin("com.github.sbt" % "sbt-pgp"         % "2.1.2")
 addSbtPlugin("com.github.sbt" % "sbt-release"     % "1.0.15")
 addSbtPlugin("io.spray"       % "sbt-boilerplate" % "0.6.1")