diff --git a/.travis.yml b/.travis.yml
index 36a62b9..88f9175 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,12 +11,12 @@ before_install:
   # Install clang 3.6
   - echo "yes" | sudo add-apt-repository 'deb http://ppa.launchpad.net/ubuntu-toolchain-r/test/ubuntu precise main'
   - echo "yes" | sudo add-apt-repository 'deb http://llvm.org/apt/precise/ llvm-toolchain-precise-3.6 main'
-  - wget -O - http://llvm.org/apt/llvm-snapshot.gpg.key | sudo apt-key add -;
+  - wget --no-check-certificate -O - http://llvm.org/apt/llvm-snapshot.gpg.key | sudo apt-key add -;
   - sudo apt-get update
   - sudo apt-get install -qq --allow-unauthenticated llvm-3.6 llvm-3.6-dev clang-3.6 libstdc++-4.8-dev lib32stdc++6
   - export CXX="clang++-3.6" CC="clang-3.6"
   # Install cmake 3.2
-  - wget http://www.cmake.org/files/v3.2/cmake-3.2.2-Linux-i386.sh
+  - wget --no-check-certificate https://www.cmake.org/files/v3.2/cmake-3.2.2-Linux-i386.sh
   - chmod a+x cmake-3.2.2-Linux-i386.sh
   - sudo ./cmake-3.2.2-Linux-i386.sh --skip-license --prefix=/usr