diff --git a/.circleci/config.yml b/.circleci/config.yml
index a5f38c020..4ea8ec413 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -165,11 +165,11 @@ workflows:
       - scalajs_job:
           name: sjs1.0_2.12
           scala_version: 2.12.13
-          scalajs_version: 1.4.0
+          scalajs_version: 1.5.0
       - scalajs_job:
           name: sjs1.0_2.13
           scala_version: 2.13.4
-          scalajs_version: 1.4.0
+          scalajs_version: 1.5.0
       - scalanative_job:
           name: native0.4_2.12
           scala_version: 2.12.13
diff --git a/.travis.yml b/.travis.yml
index 4778e5ee8..397aa4751 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,7 +12,7 @@ scala:
 
 env:
   - SCALAJS_VERSION=          ADOPTOPENJDK=8
-  - SCALAJS_VERSION=1.4.0     ADOPTOPENJDK=8
+  - SCALAJS_VERSION=1.5.0     ADOPTOPENJDK=8
   - SCALANATIVE_VERSION=0.4.0 ADOPTOPENJDK=8
   - SCALAJS_VERSION=          ADOPTOPENJDK=11
   - SCALAJS_VERSION=          ADOPTOPENJDK=15
diff --git a/project/plugins.sbt b/project/plugins.sbt
index fcf01a639..16f79e89f 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,5 +1,5 @@
 val scalaJSVersion =
-  Option(System.getenv("SCALAJS_VERSION")).filter(_.nonEmpty).getOrElse("1.4.0")
+  Option(System.getenv("SCALAJS_VERSION")).filter(_.nonEmpty).getOrElse("1.5.0")
 
 val scalaNativeVersion =
   Option(System.getenv("SCALANATIVE_VERSION")).filter(_.nonEmpty).getOrElse("0.4.0")