diff --git a/browser/requirements.txt b/browser/requirements.txt
index 8cb824a..344b438 100644
--- a/browser/requirements.txt
+++ b/browser/requirements.txt
@@ -1,2 +1,3 @@
 PyQt5>=5.6
+PyQtWebEngine
 sip
diff --git a/browser_tabbed/requirements.txt b/browser_tabbed/requirements.txt
index 8cb824a..344b438 100644
--- a/browser_tabbed/requirements.txt
+++ b/browser_tabbed/requirements.txt
@@ -1,2 +1,3 @@
 PyQt5>=5.6
+PyQtWebEngine
 sip