diff --git a/.travis.yml b/.travis.yml
index 830be1748..a087cbccc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -36,8 +36,8 @@ branches:
   only:
     - master
 before_install:
-  - "[ $SAUCE_LABS == false ] || npm i ecstatic@\"~0.4.0\" request@\"~2.33.0\" sauce-tunnel@\"~1.1.0\""
-  - "[ $ISTANBUL == false ]   || (npm i -g coveralls@\"~2.6.0\" && npm i istanbul@\"~0.2.0\")"
+  - "[ $SAUCE_LABS == false ] || npm i ecstatic@\"^0.4.0\" request@\"^2.34.0\" sauce-tunnel@\"^1.1.0\""
+  - "[ $ISTANBUL == false ]   || (npm i -g coveralls@\"^2.8.0\" && npm i istanbul@\"^0.2.0\")"
   - "[ $BIN != 'narwhal' ] || (wget https://github.com/280north/narwhal/archive/v0.3.2.zip && sudo unzip v0.3.2 -d /opt/ && rm v0.3.2.zip)"
   - "[ $BIN != 'narwhal' ] || (sudo ln -s /opt/narwhal-0.3.2/bin/narwhal /usr/local/bin/narwhal && sudo chmod +x /usr/local/bin/narwhal)"
   - "[ $BIN != 'rhino' ] || (sudo mkdir /opt/rhino-1.7R5 && sudo wget -O /opt/rhino-1.7R5/js.jar https://oss.sonatype.org/content/repositories/snapshots/org/mozilla/rhino/1.7R5-SNAPSHOT/rhino-1.7R5-20120629.144839-4.jar)"