diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index c4cf51f05c..2bcc279d84 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -106,7 +106,8 @@ jobs:
 
             -   name: Configure composer
                 run: |
-                    ([ -d ~/.composer ] || mkdir ~/.composer) && cp .github/composer-config.json ~/.composer/config.json
+                    COMPOSER_HOME="$(composer config home)"
+                    ([ -d "$COMPOSER_HOME" ] || mkdir "$COMPOSER_HOME") && cp .github/composer-config.json "$COMPOSER_HOME/config.json"
                     echo "COMPOSER_ROOT_VERSION=$(grep branch-version composer.json | grep -o '[0-9.]*').x-dev" >> $GITHUB_ENV
 
             -   name: Determine composer cache directory
diff --git a/.travis.yml b/.travis.yml
index bbb2a87bc6..2439286393 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -60,8 +60,7 @@ before_install:
           [ -d /usr/lib/openldap ] && ln -s /usr/lib/openldap /tmp/slapd-modules || ln -s /usr/lib/ldap /tmp/slapd-modules
       fi
       slapd -f src/Symfony/Component/Ldap/Tests/Fixtures/conf/slapd.conf -h ldap://localhost:3389 &
-      [ -d ~/.composer ] || mkdir ~/.composer
-      cp .github/composer-config.json ~/.composer/config.json
+      cp .github/composer-config.json "$(composer config home)/config.json"
       export PHPUNIT=$(readlink -f ./phpunit)
       export PHPUNIT_X="$PHPUNIT --exclude-group tty,benchmark,intl-data"
       export COMPOSER_UP='composer update --no-progress --ansi'