diff --git a/qmake/common.pri b/qmake/common.pri
index 7a19fa2..04d510e 100644
--- a/qmake/common.pri
+++ b/qmake/common.pri
@@ -33,26 +33,6 @@ UI_DIR = $$BUILD_ROOT/.ui
 VERSION = 0.3.1
 DEFINES += ZEAL_VERSION=\\\"$${VERSION}\\\"
 
-# Browser engine
-CONFIG(zeal_qtwebengine) {
-    qtHaveModule(webenginewidgets): BROWSER_ENGINE = qtwebengine
-    else: error("Qt WebEngine is not available.")
-} else {
-    qtHaveModule(webkitwidgets): BROWSER_ENGINE = qtwebkit
-    else: qtHaveModule(webenginewidgets): BROWSER_ENGINE = qtwebengine
-    else: error("Zeal requires Qt WebEngine or Qt WebKit.")
-}
-
-equals(BROWSER_ENGINE, qtwebengine) {
-    message("Browser engine: Qt WebEngine.")
-    QT += webenginewidgets
-    DEFINES += USE_WEBENGINE
-} else {
-    message("Browser engine: Qt WebKit.")
-    QT += webkitwidgets
-    DEFINES += USE_WEBKIT
-}
-
 # Portable build
 CONFIG(zeal_portable) {
     message("Portable build: Yes.")
diff --git a/src/libs/core/core.pri b/src/libs/core/core.pri
index 0f7c62e..41f944c 100644
--- a/src/libs/core/core.pri
+++ b/src/libs/core/core.pri
@@ -1,6 +1,6 @@
 ZEAL_LIB_NAME = Core
 
-QT += network
+QT += network webkit widgets
 
 unix:!macx {
     CONFIG += link_pkgconfig
diff --git a/src/libs/core/settings.cpp b/src/libs/core/settings.cpp
index bf514e5..2f95776 100644
--- a/src/libs/core/settings.cpp
+++ b/src/libs/core/settings.cpp
@@ -28,13 +28,7 @@
 #include <QStandardPaths>
 #include <QUrl>
 #include <QUuid>
-
-#ifdef USE_WEBENGINE
-#include <QWebEngineSettings>
-typedef QWebEngineSettings QWebSettings;
-#else
 #include <QWebSettings>
-#endif
 
 namespace {
 // Configuration file groups
@@ -53,10 +47,8 @@ Settings::Settings(QObject *parent) :
     QObject(parent)
 {
     // TODO: Move to user style sheet (related to #268)
-#ifndef USE_WEBENGINE
     QWebSettings::globalSettings()
             ->setUserStyleSheetUrl(QUrl(QStringLiteral("qrc:///browser/highlight.css")));
-#endif
 
     load();
 }
diff --git a/src/libs/ui/mainwindow.cpp b/src/libs/ui/mainwindow.cpp
index 79ab0e2..a30d719 100644
--- a/src/libs/ui/mainwindow.cpp
+++ b/src/libs/ui/mainwindow.cpp
@@ -47,20 +47,9 @@
 #include <QSystemTrayIcon>
 #include <QTabBar>
 #include <QTimer>
-
-#ifdef USE_WEBENGINE
-#include <QWebEngineHistory>
-#include <QWebEngineHistoryItem>
-#include <QWebEnginePage>
-
-typedef QWebEngineHistory QWebHistory;
-typedef QWebEngineHistoryItem QWebHistoryItem;
-typedef QWebEnginePage QWebPage;
-#else
 #include <QWebFrame>
 #include <QWebHistory>
 #include <QWebPage>
-#endif
 
 using namespace Zeal;
 
@@ -76,10 +65,8 @@ struct TabState
         tocModel = new Registry::SearchModel();
 
         webPage = new QWebPage();
-#ifndef USE_WEBENGINE
         webPage->setLinkDelegationPolicy(QWebPage::DelegateExternalLinks);
         webPage->setNetworkAccessManager(Core::Application::instance()->networkManager());
-#endif
     }
 
     TabState(const TabState &other)
@@ -94,10 +81,8 @@ struct TabState
         tocModel = new Registry::SearchModel(*other.tocModel);
 
         webPage = new QWebPage();
-#ifndef USE_WEBENGINE
         webPage->setLinkDelegationPolicy(QWebPage::DelegateExternalLinks);
         webPage->setNetworkAccessManager(Core::Application::instance()->networkManager());
-#endif
 
         restoreHistory(other.saveHistory());
     }
@@ -125,29 +110,17 @@ struct TabState
     }
 
     QUrl url() const {
-#ifdef USE_WEBENGINE
-        return webPage->url();
-#else
         return webPage->mainFrame()->url();
-#endif
     }
 
     void loadUrl(const QUrl &url)
     {
-#ifdef USE_WEBENGINE
-        webPage->load(url);
-#else
         webPage->mainFrame()->load(url);
-#endif
     }
 
     QString title() const
     {
-#ifdef USE_WEBENGINE
-        return webPage->title();
-#else
         return webPage->mainFrame()->title();
-#endif
     }
 
     QString searchQuery;
@@ -409,7 +382,7 @@ MainWindow::MainWindow(Core::Application *app, QWidget *parent) :
 
         openDocset(index);
 
-        // Get focus back. QWebPageEngine::load() always steals focus.
+        // Get focus back.
         ui->lineEdit->setFocus(Qt::MouseFocusReason);
     });
 
@@ -489,11 +462,7 @@ void MainWindow::openDocset(const QModelIndex &index)
         return;
 
     ui->webView->load(url.toUrl());
-
-    // QWebEnginePage::load() always steals focus, so no need to do it twice.
-#ifndef USE_WEBENGINE
     ui->webView->focus();
-#endif
 }
 
 QString MainWindow::docsetName(const QUrl &url) const
diff --git a/src/libs/ui/settingsdialog.cpp b/src/libs/ui/settingsdialog.cpp
index 78ca60b..8b3f777 100644
--- a/src/libs/ui/settingsdialog.cpp
+++ b/src/libs/ui/settingsdialog.cpp
@@ -30,14 +30,7 @@
 
 #include <QDir>
 #include <QFileDialog>
-
-#ifdef USE_WEBENGINE
-#include <QWebEngineSettings>
-
-typedef QWebEngineSettings QWebSettings;
-#else
 #include <QWebSettings>
-#endif
 
 using namespace Zeal;
 
diff --git a/src/libs/ui/ui.pri b/src/libs/ui/ui.pri
index ca5169d..c38640d 100644
--- a/src/libs/ui/ui.pri
+++ b/src/libs/ui/ui.pri
@@ -1,6 +1,6 @@
 ZEAL_LIB_NAME = Ui
 
-QT += widgets
+QT += webkitwidgets
 
 # QxtGlobalShortcut dependencies
 unix:!macx {
diff --git a/src/libs/ui/widgets/searchablewebview.cpp b/src/libs/ui/widgets/searchablewebview.cpp
index 93e919f..5ef0aba 100644
--- a/src/libs/ui/widgets/searchablewebview.cpp
+++ b/src/libs/ui/widgets/searchablewebview.cpp
@@ -28,15 +28,9 @@
 #include <QLineEdit>
 #include <QStyle>
 #include <QResizeEvent>
-
-#ifdef USE_WEBENGINE
-#include <QWebEngineHistory>
-#include <QWebEnginePage>
-#else
 #include <QWebFrame>
 #include <QWebHistory>
 #include <QWebPage>
-#endif
 
 SearchableWebView::SearchableWebView(QWidget *parent) :
     QWidget(parent),
@@ -56,12 +50,7 @@ SearchableWebView::SearchableWebView(QWidget *parent) :
 
     connect(m_webView, &QWebView::urlChanged, this, &SearchableWebView::urlChanged);
     connect(m_webView, &QWebView::titleChanged, this, &SearchableWebView::titleChanged);
-#ifdef USE_WEBENGINE
-    // not implemented?
-    // connect(m_webView->page(), &QWebPage::linkClicked, this, &SearchableWebView::linkClicked);
-#else
     connect(m_webView, &QWebView::linkClicked, this, &SearchableWebView::linkClicked);
-#endif
 }
 
 void SearchableWebView::setPage(QWebPage *page)
@@ -147,11 +136,7 @@ void SearchableWebView::showSearchBar()
 void SearchableWebView::hideSearchBar()
 {
     m_searchLineEdit->hide();
-#ifdef USE_WEBENGINE
-    m_webView->findText(QString());
-#else
     m_webView->findText(QString(), QWebPage::HighlightAllOccurrences);
-#endif
 }
 
 bool SearchableWebView::canGoBack() const
@@ -186,11 +171,6 @@ void SearchableWebView::resizeEvent(QResizeEvent *event)
 
 void SearchableWebView::find(const QString &text)
 {
-#ifdef USE_WEBENGINE
-    // FIXME: There's no way to just show highlight when search term is already selected.
-    // So we need a workaround before switching to Qt WebEngine.
-    m_webView->findText(text);
-#else
     if (m_webView->selectedText() != text) {
         m_webView->findText(QString(), QWebPage::HighlightAllOccurrences);
         m_webView->findText(QString());
@@ -201,29 +181,22 @@ void SearchableWebView::find(const QString &text)
     }
 
     m_webView->findText(text, QWebPage::HighlightAllOccurrences);
-#endif
 }
 
 void SearchableWebView::findNext(const QString &text, bool backward)
 {
-#ifdef USE_WEBENGINE
-    QWebPage::FindFlags flags = 0;
-#else
     QWebPage::FindFlags flags = QWebPage::FindWrapsAroundDocument;
-#endif
     if (backward)
         flags |= QWebPage::FindBackward;
+
     m_webView->findText(text, flags);
 }
 
 void SearchableWebView::moveLineEdit()
 {
     int frameWidth = style()->pixelMetric(QStyle::PM_DefaultFrameWidth);
-#ifdef USE_WEBENGINE
-    // FIXME: scrollbar width
-#else
     frameWidth += m_webView->page()->currentFrame()->scrollBarGeometry(Qt::Vertical).width();
-#endif
+
     m_searchLineEdit->move(rect().right() - frameWidth - m_searchLineEdit->sizeHint().width(), rect().top());
     m_searchLineEdit->raise();
 }
diff --git a/src/libs/ui/widgets/searchablewebview.h b/src/libs/ui/widgets/searchablewebview.h
index 1b1f5bb..bb35457 100644
--- a/src/libs/ui/widgets/searchablewebview.h
+++ b/src/libs/ui/widgets/searchablewebview.h
@@ -28,13 +28,7 @@
 
 
 class QLineEdit;
-
-#ifdef USE_WEBENGINE
-class QWebEnginePage;
-typedef QWebEnginePage QWebPage;
-#else
 class QWebPage;
-#endif
 
 class WebView;
 
diff --git a/src/libs/ui/widgets/webview.cpp b/src/libs/ui/widgets/webview.cpp
index bcb132a..9b1f958 100644
--- a/src/libs/ui/widgets/webview.cpp
+++ b/src/libs/ui/widgets/webview.cpp
@@ -26,11 +26,8 @@
 #include "../mainwindow.h"
 
 #include <QApplication>
-#include <QWheelEvent>
-
-#ifndef USE_WEBENGINE
 #include <QWebFrame>
-#endif
+#include <QWheelEvent>
 
 WebView::WebView(QWidget *parent) :
     QWebView(parent)
@@ -68,7 +65,6 @@ void WebView::mousePressEvent(QMouseEvent *event)
         forward();
         event->accept();
         break;
-#ifndef USE_WEBENGINE
     case Qt::LeftButton:
         if (!(event->modifiers() & Qt::ControlModifier || event->modifiers() & Qt::ShiftModifier))
             break;
@@ -77,7 +73,6 @@ void WebView::mousePressEvent(QMouseEvent *event)
         if (m_clickedLink.isValid())
             event->accept();
         break;
-#endif
     default:
         break;
     }
@@ -85,7 +80,6 @@ void WebView::mousePressEvent(QMouseEvent *event)
     QWebView::mousePressEvent(event);
 }
 
-#ifndef USE_WEBENGINE
 void WebView::mouseReleaseEvent(QMouseEvent *event)
 {
     switch (event->button()) {
@@ -104,7 +98,6 @@ void WebView::mouseReleaseEvent(QMouseEvent *event)
     }
     QWebView::mouseReleaseEvent(event);
 }
-#endif
 
 void WebView::wheelEvent(QWheelEvent *event)
 {
@@ -116,7 +109,6 @@ void WebView::wheelEvent(QWheelEvent *event)
     }
 }
 
-#ifndef USE_WEBENGINE
 QUrl WebView::clickedLink(const QPoint &pos) const
 {
     QWebFrame *frame = page()->frameAt(pos);
@@ -125,7 +117,6 @@ QUrl WebView::clickedLink(const QPoint &pos) const
 
     return frame->hitTestContent(pos).linkUrl();
 }
-#endif
 
 void WebView::updateZoomFactor()
 {
diff --git a/src/libs/ui/widgets/webview.h b/src/libs/ui/widgets/webview.h
index ae2d87f..1b592d5 100644
--- a/src/libs/ui/widgets/webview.h
+++ b/src/libs/ui/widgets/webview.h
@@ -24,15 +24,7 @@
 #ifndef WEBVIEW_H
 #define WEBVIEW_H
 
-#ifdef USE_WEBENGINE
-#include <QWebEnginePage>
-#include <QWebEngineView>
-
-typedef QWebEnginePage QWebPage;
-typedef QWebEngineView QWebView;
-#else
 #include <QWebView>
-#endif
 
 class WebView : public QWebView
 {
@@ -46,18 +38,14 @@ public:
 protected:
     QWebView *createWindow(QWebPage::WebWindowType type) override;
     void mousePressEvent(QMouseEvent *event) override;
-#ifndef USE_WEBENGINE
     void mouseReleaseEvent(QMouseEvent *event) override;
-#endif
     void wheelEvent(QWheelEvent *event) override;
 
 private:
-#ifndef USE_WEBENGINE
     QUrl clickedLink(const QPoint &pos) const;
-    QUrl m_clickedLink;
-#endif
     void updateZoomFactor();
 
+    QUrl m_clickedLink;
     int m_zoomFactor = 0;
 };