diff --git a/.travis.yml b/.travis.yml
index eaf45169b..cfa68c523 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,38 +17,6 @@ group: edge
 matrix:
   include:
 
-  # check amalgamation
-  - os: linux
-    compiler: gcc
-    env:
-      - COMPILER=g++-4.9
-      - SPECIAL=amalgamation
-      - MULTIPLE_HEADERS=ON
-    addons:
-      apt:
-        sources: ['ubuntu-toolchain-r-test']
-        packages: ['g++-4.9', 'astyle', 'ninja-build']
-    after_success:
-      - make check-amalgamation
-
-  # Coveralls (http://gronlier.fr/blog/2015/01/adding-code-coverage-to-your-c-project/)
-
-  - os: linux
-    compiler: gcc
-    dist: bionic
-    addons:
-      apt:
-        sources: ['ubuntu-toolchain-r-test']
-        packages: ['g++-7', 'ninja-build']
-    before_script:
-      - pip install --user cpp-coveralls
-    after_success:
-      - coveralls --build-root test --include include/nlohmann --gcov 'gcov-7' --gcov-options '\-lp'
-    env:
-      - COMPILER=g++-7
-      - CMAKE_OPTIONS=-DJSON_Coverage=ON
-      - MULTIPLE_HEADERS=ON
-
   # Coverity (only for branch coverity_scan)
 
   - os: linux
@@ -252,15 +220,13 @@ script:
 
   # make sure CXX is correctly set
   - if [[ "${COMPILER}" != "" ]]; then export CXX=${COMPILER}; fi
-  # by default, use the single-header version
-  - if [[ "${MULTIPLE_HEADERS}" == "" ]]; then export MULTIPLE_HEADERS=OFF; fi
 
   # append CXX_STANDARD to CMAKE_OPTIONS if required
   - CMAKE_OPTIONS+=${CXX_STANDARD:+ -DCMAKE_CXX_STANDARD=$CXX_STANDARD -DCMAKE_CXX_STANDARD_REQUIRED=ON}
 
   # compile and execute unit tests
   - mkdir -p build && cd build
-  - cmake .. ${CMAKE_OPTIONS} -DJSON_MultipleHeaders=${MULTIPLE_HEADERS} -DJSON_BuildTests=On -GNinja && cmake --build . --config Release
+  - cmake .. ${CMAKE_OPTIONS} -DJSON_BuildTests=On -GNinja && cmake --build . --config Release
   - ctest -C Release --timeout 2700 -V -j
   - cd ..