diff --git a/.travis.yml b/.travis.yml
index bc2662b..34ba7df 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,12 @@ os: linux
 language: cpp
 compiler: gcc
 
+env:
+  global:
+    - OPENSSL_VERSION=1.0.1r
+    - OPENSSL_CRYPTO_CFLAGS="-I${HOME}/image/include"
+    - OPENSSL_CRYPTO_LIBS="-L${HOME}/image/lib -lcrypto"
+
 matrix:
   fast_finish: true
   include:
@@ -24,16 +30,20 @@ addons:
 before_script:
     - unset CC; unset CXX
 
+install:
+  - if [ ! -d download-cache ]; then mkdir download-cache; fi
+  - if [ ! -f download-cache/openssl-${OPENSSL_VERSION}.tar.gz ]; then wget -O download-cache/openssl-${OPENSSL_VERSION}.tar.gz https://www.openssl.org/source/openssl-${OPENSSL_VERSION}.tar.gz; fi
+
 script:
     - cppcheck --force --enable=warning,missingInclude --error-exitcode=1 . >build.log 2>&1 || (cat build.log && exit 1)
     - mkdir image
-    - wget https://www.openssl.org/source/openssl-1.0.1r.tar.gz && tar zxf openssl-1.0.1r.tar.gz && cd openssl-1.0.1r
+    - tar zxf download-cache/openssl-${OPENSSL_VERSION}.tar.gz && cd openssl-${OPENSSL_VERSION}
     - ./Configure --prefix=/ --cross-compile-prefix=${CHOST}- shared $m no-multilib no-capieng --openssldir=/etc/ssl --libdir=/lib -static-libgcc >build.log 2>&1 || (cat build.log && exit 1)
     - make install INSTALL_PREFIX="${HOME}/image" INSTALLTOP="/" MANDIR="/tmp" >build.log 2>&1 || (cat build.log && exit 1)
     - cd .. && autoreconf -i -v
-    - export OPENSSL_CRYPTO_CFLAGS="-I${HOME}/image/include"
-    - export OPENSSL_CRYPTO_LIBS="-L${HOME}/image/lib -lcrypto"
     - ./configure --prefix=/ --libdir=/lib --host=$CHOST --build=x86_64-pc-linux-gnu --program-prefix='' && make
     
 cache:
-  -apt
+  apt: true
+  directories:
+  - download-cache