diff --git a/ci-scripts/osx/travis-install.sh b/ci-scripts/osx/travis-install.sh
old mode 100644
new mode 100755
index 38456ad..489a906
--- a/ci-scripts/osx/travis-install.sh
+++ b/ci-scripts/osx/travis-install.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
 brew update
-brew install qt55 glew lz4 lzo libusb libmypaint
+brew install qt56 glew lz4 lzo libusb libmypaint
 brew tap tcr/tcr
 brew install clang-format
diff --git a/toonz/sources/CMakeLists.txt b/toonz/sources/CMakeLists.txt
index 14f7fd7..82fe6c0 100644
--- a/toonz/sources/CMakeLists.txt
+++ b/toonz/sources/CMakeLists.txt
@@ -245,6 +245,7 @@ find_package(Qt5 REQUIRED
     PrintSupport
     LinguistTools
     Multimedia
+    MultimediaWidgets
 )
 
 set(QT_MINIMUM_VERSION 5.5.0)
diff --git a/toonz/sources/toonz/CMakeLists.txt b/toonz/sources/toonz/CMakeLists.txt
index b55a9dd..8818d87 100644
--- a/toonz/sources/toonz/CMakeLists.txt
+++ b/toonz/sources/toonz/CMakeLists.txt
@@ -409,7 +409,7 @@ elseif(BUILD_ENV_APPLE)
 
     target_link_libraries(OpenToonz_${VERSION}
         Qt5::Core Qt5::Gui Qt5::Network Qt5::OpenGL Qt5::Svg Qt5::Xml
-        Qt5::Script Qt5::Widgets Qt5::PrintSupport Qt5::Multimedia
+        Qt5::Script Qt5::Widgets Qt5::PrintSupport Qt5::Multimedia Qt5::MultimediaWidgets
         ${GL_LIB} ${GLUT_LIB}
         ${COCOA_LIB} ${EXTRA_LIBS} mousedragfilter
     )
diff --git a/toonz/sources/toonz/penciltestpopup.cpp b/toonz/sources/toonz/penciltestpopup.cpp
index b8b51de..c7dfd95 100644
--- a/toonz/sources/toonz/penciltestpopup.cpp
+++ b/toonz/sources/toonz/penciltestpopup.cpp
@@ -45,6 +45,7 @@
 #include <QCamera>
 #include <QCameraImageCapture>
 #include <QCameraViewfinderSettings>
+#include <QCameraViewfinder>
 
 #include <QComboBox>
 #include <QPushButton>
@@ -944,6 +945,10 @@ PencilTestPopup::PencilTestPopup()
 
   QPushButton* subfolderButton = new QPushButton(tr("Subfolder"), this);
 
+#ifdef MACOSX
+  m_dummyViewFinder = new QCameraViewfinder(this);
+  m_dummyViewFinder->hide();
+#endif
   //----
 
   m_resolutionCombo->setMaximumWidth(fontMetrics().width("0000 x 0000") + 25);
@@ -1297,6 +1302,12 @@ void PencilTestPopup::onCameraListComboActivated(int comboIndex) {
                this, SLOT(onImageCaptured(int, const QImage&)));
     delete m_cameraImageCapture;
   }
+
+#ifdef MACOSX
+  // this line is needed only in macosx
+  m_currentCamera->setViewfinder(m_dummyViewFinder);
+#endif
+
   m_cameraImageCapture = new QCameraImageCapture(m_currentCamera, this);
   /* Capturing to buffer currently seems not to be supported on Windows */
   // if
@@ -1368,6 +1379,10 @@ void PencilTestPopup::onResolutionComboActivated(const QString& itemText) {
   m_cameraImageCapture->setEncodingSettings(imageEncoderSettings);
   m_cameraViewfinder->updateSize();
 
+#ifdef MACOSX
+  m_dummyViewFinder->resize(newResolution);
+#endif
+
   // reset white bg
   m_whiteBGImg = QImage();
   m_bgReductionFld->setDisabled(true);
diff --git a/toonz/sources/toonz/penciltestpopup.h b/toonz/sources/toonz/penciltestpopup.h
index 76e063c..6009317 100644
--- a/toonz/sources/toonz/penciltestpopup.h
+++ b/toonz/sources/toonz/penciltestpopup.h
@@ -22,6 +22,9 @@ class QTimer;
 class QIntValidator;
 class QRegExpValidator;
 class QPushButton;
+#ifdef MACOSX
+class QCameraViewfinder;
+#endif
 
 namespace DVGui {
 class FileField;
@@ -183,6 +186,10 @@ class PencilTestPopup : public DVGui::Dialog {
 
   CameraCaptureLevelControl* m_camCapLevelControl;
 
+#ifdef MACOSX
+  QCameraViewfinder* m_dummyViewFinder;
+#endif
+
   int m_timerId;
   QString m_cacheImagePath;
   bool m_captureWhiteBGCue;