--- a/gtkdatabox.pc.in
+++ b/gtkdatabox.pc.in
@@ -6,6 +6,6 @@
 Name: gtkdatabox
 Description: Widget to display large amounts of numerical data
 Version: @DATABOX_VERSION@
-Requires: gtk+-2.0 >= @GTK_REQUIRED@, pango >= @PANGO_REQUIRED@, cairo >= @CAIRO_REQUIRED@
+Requires: gtk+-3.0 >= @GTK_REQUIRED@, pango >= @PANGO_REQUIRED@, cairo >= @CAIRO_REQUIRED@
 Libs: -L${libdir} -lgtkdatabox
 Cflags: -I${includedir}