diff --git a/installer/README.md b/installer/README.md
index 2fcc772..a490cac 100644
--- a/installer/README.md
+++ b/installer/README.md
@@ -11,6 +11,8 @@ Put these files in `data` directory before running `setup.iss` or `package.bat`:
 * Qt5Network.dll
 * Qt5Widgets.dll
 * Qt5Xml.dll
+* libeay32.dll
+* ssleay32.dll
 * imageformats/qgif.dll
 * imageformats/qjpeg.dll
 * platforms/qwindows.dll
diff --git a/src/constants.h b/src/constants.h
index c46c210..845661a 100644
--- a/src/constants.h
+++ b/src/constants.h
@@ -20,7 +20,7 @@
 
 #define APP_HOMEPAGE "https://www.strangeplanet.fr/work/umwp-autochanger"
 #define APP_DOCUMENTATION_URL "https://www.strangeplanet.fr/work/umwp-autochanger/#help"
-#define APP_VERSION_URL "http://www.strangeplanet.fr/work/umwp-autochanger/last-version.txt"
+#define APP_VERSION_URL "https://www.strangeplanet.fr/work/umwp-autochanger/last-version.txt"
 #define APP_ISSUES_URL "https://github.com/mistic100/UMWP-Autochanger/issues"
 
 #define APP_INSTALLER_SIZE 12000000
diff --git a/src/gui/newversiondialog.cpp b/src/gui/newversiondialog.cpp
index 415f811..8e6043b 100644
--- a/src/gui/newversiondialog.cpp
+++ b/src/gui/newversiondialog.cpp
@@ -60,7 +60,14 @@ void NewVersionDialog::on_updateButton_clicked()
         QLOG_DEBUG() << "Download" << m_version.link;
 
         QNetworkAccessManager* manager = new QNetworkAccessManager();
-        m_reply = manager->get(QNetworkRequest(QUrl(m_version.link)));
+
+        QNetworkRequest request(QUrl(m_version.link));
+        if (m_version.link.startsWith("https"))
+        {
+            request.setSslConfiguration(QSslConfiguration::defaultConfiguration());
+        }
+
+        m_reply = manager->get(request);
 
         connect(m_reply, SIGNAL(readyRead()), this, SLOT(onDataReady()));
         connect(m_reply, SIGNAL(finished()), this, SLOT(onDownloadFinished()));
@@ -114,7 +121,7 @@ void NewVersionDialog::onDownloadFinished()
 
     if (m_reply->error() != QNetworkReply::NoError)
     {
-        QLOG_ERROR() << "Network error";
+        QLOG_ERROR() << m_reply->errorString();
 
         m_file.remove();
         errorMessage();
diff --git a/src/versionchecker.h b/src/versionchecker.h
index 61c101d..e016546 100644
--- a/src/versionchecker.h
+++ b/src/versionchecker.h
@@ -23,7 +23,14 @@ public slots:
     {
         QNetworkAccessManager* manager = new QNetworkAccessManager();
         connect(manager, SIGNAL(finished(QNetworkReply*)), this, SLOT(downloadFinished(QNetworkReply*)));
-        manager->get(QNetworkRequest(QUrl(APP_VERSION_URL)));
+
+        QNetworkRequest request(QUrl(APP_VERSION_URL));
+        if (QString(APP_VERSION_URL).startsWith("https"))
+        {
+            request.setSslConfiguration(QSslConfiguration::defaultConfiguration());
+        }
+
+        manager->get(request);
     }
 
 private slots:
@@ -35,6 +42,10 @@ private slots:
             version.code = _reply->readLine().trimmed();
             version.link = _reply->readLine().trimmed();
             version.hash = _reply->readLine().trimmed();
+            if (QString(APP_VERSION_URL).startsWith("https"))
+            {
+                version.link = version.link.replace("http://", "https://");
+            }
 
             if (version.code.compare(APP_VERSION) > 0)
             {
@@ -42,6 +53,10 @@ private slots:
                 emit newVersionAvailable(version);
             }
         }
+        else
+        {
+            QLOG_ERROR() << _reply->errorString();
+        }
 
         _reply->manager()->deleteLater();
         _reply->deleteLater();