diff --git a/.travis.yml b/.travis.yml
index 75d0ea64..ab01bc36 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,7 +8,7 @@ jdk:
 
 scala:
   - 2.12.10
-  - 2.13.3
+  - 2.13.4
 
 before_cache:
   - find "$HOME/.sbt/" -name '*.lock' -print0 | xargs -0 rm
diff --git a/build.sbt b/build.sbt
index b5e38410..55ad4259 100644
--- a/build.sbt
+++ b/build.sbt
@@ -10,7 +10,7 @@ val ScalatestVersion = "3.1.1"
 val appSettings = Seq(
     organization := Org,
     scalaVersion := "2.12.10",
-    crossScalaVersions := Seq("2.12.10", "2.13.3"),
+    crossScalaVersions := Seq("2.12.10", "2.13.4"),
     fork in Test := false,
     publishMavenStyle := true,
     publishArtifact in Test := false,