diff --git a/pkgs/development/libraries/libunity/default.nix b/pkgs/development/libraries/libunity/default.nix
index f6fb9a13e4cd..81b7226e3137 100644
--- a/pkgs/development/libraries/libunity/default.nix
+++ b/pkgs/development/libraries/libunity/default.nix
@@ -1,4 +1,5 @@
-{ lib, stdenv
+{ lib
+, stdenv
 , fetchgit
 , pkg-config
 , glib
@@ -14,16 +15,24 @@
 
 stdenv.mkDerivation {
   pname = "libunity";
-  version = "unstable-2019-03-19";
+  version = "unstable-2021-02-01";
 
   outputs = [ "out" "dev" "py" ];
 
+  # Obtained from https://git.launchpad.net/ubuntu/+source/libunity/log/
   src = fetchgit {
     url = "https://git.launchpad.net/ubuntu/+source/libunity";
-    rev = "import/7.1.4+19.04.20190319-0ubuntu1";
-    sha256 = "15b49v88v74q20a5c0lq867qnlz7fx20xifl6j8ha359r0zkfwzj";
+    rev = "import/7.1.4+19.04.20190319-5";
+    sha256 = "LHUs6kl1srS6Xektx+jmm4SXLR47VuQ9IhYbBxf2Wc8=";
   };
 
+  patches = [
+    # Fix builf with latest Vala
+    # https://code.launchpad.net/~jtojnar/libunity/libunity
+    # Did not send upstream because Ubuntu is stuck on Vala 0.48.
+    ./fix-vala.patch
+  ];
+
   nativeBuildInputs = [
     autoreconfHook
     gobject-introspection
@@ -43,11 +52,6 @@ stdenv.mkDerivation {
     libdbusmenu
   ];
 
-  patches = [
-    # See: https://gitlab.gnome.org/GNOME/vala/issues/766
-    ./fix-vala.patch
-  ];
-
   preConfigure = ''
     intltoolize
   '';
diff --git a/pkgs/development/libraries/libunity/fix-vala.patch b/pkgs/development/libraries/libunity/fix-vala.patch
index ec34229b4443..555c2ad7bcb0 100644
--- a/pkgs/development/libraries/libunity/fix-vala.patch
+++ b/pkgs/development/libraries/libunity/fix-vala.patch
@@ -1,36 +1,12 @@
-diff -ru old/libunity/src/unity-aggregator-scope.vala libunity/src/unity-aggregator-scope.vala
---- old/libunity/src/unity-aggregator-scope.vala	1969-12-31 19:00:01.000000000 -0500
-+++ libunity/src/unity-aggregator-scope.vala	2019-09-21 17:06:12.663864891 -0400
-@@ -51,7 +51,7 @@
-    */
-   public abstract int category_index_for_scope_id (string scope_id);
- 
--  public AggregatorScope (string dbus_path_, string id_, MergeMode merge_mode = AggregatorScope.MergeMode.OWNER_SCOPE, bool proxy_filter_hints = false)
-+  protected AggregatorScope (string dbus_path_, string id_, MergeMode merge_mode = AggregatorScope.MergeMode.OWNER_SCOPE, bool proxy_filter_hints = false)
-   {
-     Object (dbus_path: dbus_path_, id: id_, is_master: true,
-             merge_mode: merge_mode, proxy_filter_hints: proxy_filter_hints);
-diff -ru old/libunity/src/unity-deprecated-scope.vala libunity/src/unity-deprecated-scope.vala
---- old/libunity/src/unity-deprecated-scope.vala	1969-12-31 19:00:01.000000000 -0500
-+++ libunity/src/unity-deprecated-scope.vala	2019-09-21 17:06:39.721627805 -0400
-@@ -61,7 +61,7 @@
-   internal CategorySet _categories;
-   internal FilterSet _filters;
-    
--  public DeprecatedScopeBase (string dbus_path_, string id_)
-+  protected DeprecatedScopeBase (string dbus_path_, string id_)
-   {
-     Object (dbus_path: dbus_path_, id: id_);
+--- a/protocol/protocol-icon.vala	2013-08-27 12:53:57 +0000
++++ b/protocol/protocol-icon.vala	2021-04-13 22:34:41 +0000
+@@ -185,7 +185,7 @@
    }
-diff -ru old/libunity/tools/preview-renderer.vala libunity/tools/preview-renderer.vala
---- old/libunity/tools/preview-renderer.vala	1969-12-31 19:00:01.000000000 -0500
-+++ libunity/tools/preview-renderer.vala	2019-09-21 17:09:16.201522110 -0400
-@@ -63,7 +63,7 @@
-      */
-     public abstract class GridRenderer: PreviewRenderer
-     {
--        public GridRenderer()
-+        protected GridRenderer()
-         {
-             Object();
-         }
+ 
+   /* Added to GIcon interface in 2.37 */
+-  private Variant serialize ()
++  private Variant? serialize ()
+   {
+     Variant? ret = null;
+     return ret;
+