diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1134d1a..9879824 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.11.12, 2.12.19, 2.13.13, 3.3.3]
+        scala: [2.11.12, 2.12.19, 2.13.13, 3.4.0]
         java: [zulu@8]
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/build.sbt b/build.sbt
index d6899f8..9370135 100644
--- a/build.sbt
+++ b/build.sbt
@@ -8,7 +8,7 @@ organization := "com.github.swagger-akka-http"
 
 ThisBuild / scalaVersion := "2.13.13"
 
-ThisBuild / crossScalaVersions := Seq("2.11.12", "2.12.19", "2.13.13", "3.3.3")
+ThisBuild / crossScalaVersions := Seq("2.11.12", "2.12.19", "2.13.13", "3.4.0")
 
 ThisBuild / organizationHomepage := Some(url("https://github.com/swagger-akka-http/swagger-scala-module"))