diff --git a/build/markdown.m4 b/build/markdown.m4
index c893cb9e5..01acc0b6c 100644
--- a/build/markdown.m4
+++ b/build/markdown.m4
@@ -46,8 +46,8 @@ AC_DEFUN([GP_CHECK_MARKDOWN],
           [markdown_library=libmarkdown])
     GP_STATUS_FEATURE_ADD([Markdown library], [$markdown_library])
 
-    GTK_VERSION=2.16
-    WEBKIT_VERSION=1.1.13
+    GTK_VERSION=3.0
+    WEBKIT_VERSION=2.30
 
     dnl Support both webkit2gtk 4.0 and 4.1, as the only difference is the
     dnl libsoup version in the API, which we don't use.
diff --git a/markdown/README b/markdown/README
index 65f1b845a..b5f28f854 100644
--- a/markdown/README
+++ b/markdown/README
@@ -146,8 +146,8 @@ Requirements
 
 The plugin depends on the following libraries:
 
-* `GTK+ <http://www.gtk.org>`_ 2.16 or greater
-* `WebKitGTK+ <http://webkitgtk.org>`_ 1.1.18 or greater
+* `GTK+ <http://www.gtk.org>`_ 3.0 or greater
+* `WebKitGTK+ <http://webkitgtk.org>`_ API 4.0 or 4.1
 
 License
 -------