diff --git a/.ci/deb/install b/.ci/deb/install
index 3c156eab..339f1c23 100755
--- a/.ci/deb/install
+++ b/.ci/deb/install
@@ -23,7 +23,7 @@ PACKAGES="${PACKAGES} libdcmtk2-dev libicu-dev libjsoncpp-dev liblog4cpp5-dev zl
 # Dependencies of Python wrappers
 PACKAGES="${PACKAGES} libboost-python-dev ${PYTHON_PREFIX}-dev"
 # Dependencies of unit tests
-PACKAGES="${PACKAGES} dcmtk libboost-test-dev ${PYTHON_PREFIX}-nose"
+PACKAGES="${PACKAGES} dcmtk libboost-test-dev ${PYTHON_PREFIX}-pip ${PYTHON_PREFIX}-nose"
 # Coverage and static analysis
 PACKAGES="${PACKAGES} cppcheck lcov wget"
 
diff --git a/.travis.yml b/.travis.yml
index 199f4c86..c7cf570f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,7 +12,7 @@ matrix:
 install:
   - if [ "$TRAVIS_OS_NAME" = "linux" ]; then sudo -E sh ./.ci/deb/install; fi
   - if [ "$TRAVIS_OS_NAME" = "osx" ]; then ./.ci/brew/install; fi
-  - if [ "${CC}" = "gcc" ]; then pip${Python} install -U --user cpp-coveralls; fi
+  - if [ "${CC}" = "gcc" ]; then /usr/bin/pip${Python} install -U --user cpp-coveralls; fi
   - if [ "${CC}" = "gcc" ]; then export PATH=$(python -c 'import site; print(site.getuserbase())')/bin:${PATH}; fi
 script:
   - if [ "$TRAVIS_OS_NAME" = "linux" ]; then ./.ci/deb/build; fi