diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7409656d..599b895d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -69,10 +69,6 @@ jobs:
     env:
       SOCI_CI: true
       SOCI_CI_BACKEND: ${{ matrix.backend }}
-      PGHOST: localhost
-      PGPORT: 5432
-      PGUSER: postgres
-      PGPASSWORD: Password12!
       SOCI_MYSQL_ROOT_PASSWORD: root
 
     steps:
@@ -89,6 +85,20 @@ jobs:
           set_env_var SOCI_CI_BRANCH $GITHUB_REF
           set_env_var SOCI_SOURCE_DIR $GITHUB_WORKSPACE
           set_env_var SOCI_SOURCE_DIR `pwd`
+
+          case "${{runner.os}}" in
+            Linux)
+              set_env_var PGHOST localhost
+              set_env_var PGPORT 5432
+              set_env_var PGUSER postgres
+              set_env_var PGPASSWORD 'Password12!'
+              ;;
+
+            macOS)
+              set_env_var PGDATA /usr/local/var/postgres
+              ;;
+          esac
+
           if [ "${{matrix.no_boost}}" = true ]; then
             set_env_var WITH_BOOST OFF
           fi
diff --git a/scripts/ci/before_build_postgresql.sh b/scripts/ci/before_build_postgresql.sh
index 76b28e9f..29ca5f3e 100755
--- a/scripts/ci/before_build_postgresql.sh
+++ b/scripts/ci/before_build_postgresql.sh
@@ -5,5 +5,11 @@
 #
 source ${SOCI_SOURCE_DIR}/scripts/ci/common.sh
 
+if [ $(uname) = Darwin ]; then
+    pg_ctl start
+    pg_isready --timeout=60
+    createuser --superuser postgres
+fi
+
 psql --version
 psql -c 'create database soci_test;' -U postgres