diff --git a/.Rbuildignore b/.Rbuildignore
new file mode 100644
index 0000000000..91114bf2f2
--- /dev/null
+++ b/.Rbuildignore
@@ -0,0 +1,2 @@
+^.*\.Rproj$
+^\.Rproj\.user$
diff --git a/.travis.yml b/.travis.yml
index a9170edb78..858db8cc6d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,9 @@ latex: false
 pandoc: false
 cache: packages
 
+r_github_packages:
+  - cran/yaml
+  - yufree/scifetch
 before_install:
   - git config --global user.email "yufree@live.cn"
   - git config --global user.name "yufree"