diff --git a/.travis.yml b/.travis.yml
index 0927f434b5e4bb7a8e646eca6f9f2553afb1f72a..7b18fcd107b80a0edc03e4905471d30c387f08d1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,7 @@ notifications:
 
 before_script:
 # travis has changed to 64-bit and we require 32-bit compatibility libraries
+  - sudo apt-get update
   - "sudo apt-get -qq install libc6:i386 libgcc1:i386 gcc-4.6-base:i386 libstdc++5:i386 libstdc++6:i386 || true"
   - "[ $RTT_TOOL_CHAIN = 'sourcery-arm' ] && curl -s https://sourcery.mentor.com/public/gnu_toolchain/arm-none-eabi/arm-2012.09-63-arm-none-eabi-i686-pc-linux-gnu.tar.bz2 | sudo tar xjf - -C /opt && export RTT_EXEC_PATH=/opt/arm-2012.09/bin && /opt/arm-2012.09/bin/arm-none-eabi-gcc --version || true"
   - "[ $RTT_TOOL_CHAIN = 'sourcery-mips' ] && curl -s https://sourcery.mentor.com/public/gnu_toolchain/mips-sde-elf/mips-2012.09-98-mips-sde-elf-i686-pc-linux-gnu.tar.bz2 | sudo tar xjf - -C /opt && export RTT_EXEC_PATH=/opt/mips-2012.09/bin && /opt/mips-2012.09/bin/mips-sde-elf-gcc --version || true"