diff --git a/.appveyor.yml b/.appveyor.yml
index ba7290e9..8d141afc 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -18,7 +18,7 @@ environment:
 install:
   - set BOOST_ROOT=c:\projects\boost
   - cd c:\projects\
-  - python %APPVEYOR_BUILD_FOLDER%\build\download-boost-snapshot.py master
+  - python %APPVEYOR_BUILD_FOLDER%\ci\download-boost-snapshot.py master
   - rd /s /q %BOOST_ROOT%\boost\unordered
   - cd %BOOST_ROOT%\tools\build
   - cmd /c bootstrap
diff --git a/.travis.yml b/.travis.yml
index cc1829f1..77815b56 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -19,32 +19,32 @@ matrix:
       - compiler: gcc
         env: |
             label="gcc C++03/11";
-            user_config="using gcc : : g++-4.8 --coverage -fsanitize=address -Werror ;"
+            user_config="using gcc : : g++-4.8 --coverage -fsanitize=address ;"
             enable_coverage=1
             CXXSTD=03,11
       - compiler: gcc
         env: |
             label="gcc 32 bit C++11";
-            user_config="using gcc : : g++-4.8 -m32 -fsanitize=address -Werror ;"
+            user_config="using gcc : : g++-4.8 -m32 -fsanitize=address ;"
             CXXSTD=11
       - compiler: clang
         env: |
             label="clang C++11/17";
-            user_config="using clang : : clang++ -fsanitize=address -Werror ;"
+            user_config="using clang : : clang++ -fsanitize=address ;"
             CXXSTD=11,17
         # sanitized=address not available for 32-bit clang on travis.
       - compiler: clang
         env: |
             label="clang 32 bit";
-            user_config="using clang : : clang++ -m32 -Werror ;"
+            user_config="using clang : : clang++ -m32 ;"
             CXXSTD=03
 
 before_install:
     - if [ -n $enable_coverage ]; then pip install --user cpp-coveralls; fi
 
 before_script:
-    - export BOOST_VERSION=1.66.0
-    - export BOOST_FILENAME=boost_1_66_0
+    - export BOOST_VERSION=1.67.0
+    - export BOOST_FILENAME=boost_1_67_0
     - export BOOST_ROOT=${HOME}/boost
     - cd ${TRAVIS_BUILD_DIR}
     - touch Jamroot.jam
@@ -70,7 +70,7 @@ before_script:
         echo "Downloading ${download_url}"
         mkdir $HOME/download
         cd $HOME/download
-        python ${TRAVIS_BUILD_DIR}/build/download-boost-snapshot.py $snapshot
+        python ${TRAVIS_BUILD_DIR}/ci/download-boost-snapshot.py $snapshot
         mv * ${BOOST_ROOT}
     - rm -r ${BOOST_ROOT}/boost/unordered
     - cd ${BOOST_ROOT}/tools/build
diff --git a/build/download-boost-snapshot.py b/ci/download-boost-snapshot.py
similarity index 100%
rename from build/download-boost-snapshot.py
rename to ci/download-boost-snapshot.py