diff --git a/.travis.yml b/.travis.yml
index 27c73e2..ae0f7f8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,6 +16,6 @@ before_install:
   - $CXX --version
 
 node_js:
-  - "4"
   - "6"
   - "8"
+  - "10"
diff --git a/README.md b/README.md
index b362159..80f5747 100644
--- a/README.md
+++ b/README.md
@@ -101,6 +101,10 @@ You can also check out this nice [working implementation](https://github.com/scr
 
 See the [`examples`](examples/) directory.
 
+## Changes in v3
+
+- dropped support for Node 4
+
 ## API
 
 ### Transform Stream