diff --git a/catalog/src/main.cpp b/catalog/src/main.cpp
index d5f89ee..6e2fae1 100644
--- a/catalog/src/main.cpp
+++ b/catalog/src/main.cpp
@@ -22,7 +22,7 @@
 #include <ChronoSync/socket.hpp>
 #include <ndn-cxx/face.hpp>
 #include <json/value.h>
-#include <libpq-fe.h>
+#include <mysql.h>
 
 using namespace std;
 using namespace ndn;
@@ -33,12 +33,11 @@
   shared_ptr<chronosync::Socket> socket; // use ChronoSync
 
   Json::Value root; // use jsoncpp
-  PGconn *conn; // use libpq
-  // Make a connection to the database
-  conn = PQconnectdb("dbname=bedrock sslmode=disable");
-  if (PQstatus(conn) != CONNECTION_OK) {
-    cout << "Connection to database failed: "
-         << PQerrorMessage(conn) << endl;
+  MYSQL *con = mysql_init(NULL);
+  if (con == NULL)
+  {
+    fprintf(stderr, "%s\n", mysql_error(con));
+    return 1;
   }
 
   return 0;
diff --git a/catalog/tests/unit-tests/simple.cpp b/catalog/tests/unit-tests/simple.cpp
index 01ae66a..970b835 100644
--- a/catalog/tests/unit-tests/simple.cpp
+++ b/catalog/tests/unit-tests/simple.cpp
@@ -20,10 +20,10 @@
  */
 
 #include <boost/test/unit_test.hpp>
-#include <libpq-fe.h>
 #include <json/value.h>
 #include <json/writer.h>
 #include <json/reader.h>
+#include <mysql.h>
 #include <iostream>
 
 namespace NdnAtmos {
@@ -38,9 +38,8 @@
 
 BOOST_AUTO_TEST_CASE(DBTest)
 {
-  PGconn *conn;
-  conn = PQconnectdb("dbname=test sslmode=disable");
-  BOOST_CHECK_EQUAL(PQstatus(conn) != CONNECTION_OK, true);
+  MYSQL *conn = mysql_init(NULL);
+  BOOST_CHECK_EQUAL(conn == NULL, false);
 }
 
 BOOST_AUTO_TEST_CASE(JsonTest)