diff --git a/.travis.yml b/.travis.yml
index d5fb6e6..34ef924 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,17 +5,11 @@ services:
   - docker
 
 env:
-  - V8VER=6.5
+  - V8VER=6.6
     PHPVER=7.0
-  - V8VER=6.4
-    PHPVER=7.0
-  - V8VER=6.5
+  - V8VER=6.6
     PHPVER=7.1
-  - V8VER=6.4
-    PHPVER=7.1
-  - V8VER=6.5
-    PHPVER=7.2
-  - V8VER=6.4
+  - V8VER=6.6
     PHPVER=7.2
 
 script: make -f Makefile.travis test
diff --git a/Dockerfile.travis b/Dockerfile.travis
index 7fbc4a3..1ffe2cd 100644
--- a/Dockerfile.travis
+++ b/Dockerfile.travis
@@ -9,7 +9,7 @@ RUN apt-get update -q
 RUN apt-get install -y software-properties-common
 
 RUN add-apt-repository ppa:ondrej/php
-RUN add-apt-repository ppa:pinepain/libv8-$V8VER -y
+RUN add-apt-repository ppa:pinepain/php -y
 RUN apt-get update -q
 
 RUN apt-get install -y php$PHPVER-dev libv8-$V8VER-dev
diff --git a/Makefile.travis b/Makefile.travis
index e5de874..2a70252 100644
--- a/Makefile.travis
+++ b/Makefile.travis
@@ -1,5 +1,5 @@
 # Configure and build scripts for travis CI system
-V8VER ?= 6.3
+V8VER ?= 6.6
 
 IMAGENAME ?= v8js-test
 
@@ -12,3 +12,5 @@ build:
 
 test: build
 	docker run --rm -t $(IMAGENAME) make test
+
+.PHONY: build test