diff --git a/gjs-1.47.90.tar.xz b/gjs-1.47.90.tar.xz
deleted file mode 100644
index 008849b..0000000
--- a/gjs-1.47.90.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:646a78cc3be21fc1c7393972a4b7a9eaf7fddff09b5861169cabb9dbc67263c7
-size 603024
diff --git a/gjs-1.47.91.tar.xz b/gjs-1.47.91.tar.xz
new file mode 100644
index 0000000..9edfa3f
--- /dev/null
+++ b/gjs-1.47.91.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b8bd21620f8bb252ec9922d9fdd036ac6229e509af225b0ab9b4379ef333de35
+size 592592
diff --git a/gjs.changes b/gjs.changes
index ef57b4c..20fe430 100644
--- a/gjs.changes
+++ b/gjs.changes
@@ -1,3 +1,25 @@
+-------------------------------------------------------------------
+Tue Feb 28 01:46:36 UTC 2017 - zaitor@opensuse.org
+
+- Update to version 1.47.91:
+  + overrides/Gio: Provide an empty array on error, rather than
+    null (bgo#677513).
+  + WithSignals parameter for Lang.Class (bgo#664897).
+  + Add API to better support asynchronous code (bgo#608450).
+  + Fix 1.47.90 tests are failing (bgo#778780).
+  + boxed: Plug a memory leak (bgo#779036).
+  + Don't crash when marshalling an unsafe integer from
+    introspection (bgo#778705).
+  + Lang.Class should include symbol properties (bgo#778718).
+  + Console output of arrays should be UTF-8 aware (bgo#778729).
+  + Various fixes for 1.47.91 (bgo#779293).
+  + Progress towards a Visual Studio build of GJS on Windows.
+  + Misc bug fixes.
+- Pass JS_INTERP=/usr/bin/js to configure in order to help it find
+  the default, unversioned js binary.
+- Add moyjs38 BuildRequires: the mozjs interpreter is not installed
+  per default together with mozjs-devel.
+
 -------------------------------------------------------------------
 Wed Feb 15 09:34:55 UTC 2017 - dimstar@opensuse.org
 
diff --git a/gjs.spec b/gjs.spec
index ef35100..de00ec1 100644
--- a/gjs.spec
+++ b/gjs.spec
@@ -17,7 +17,7 @@
 
 
 Name:           gjs
-Version:        1.47.90
+Version:        1.47.91
 Release:        0
 # FIXME: find out if tapsets should really be in devel package or in main package
 Summary:        JavaScript bindings based on gobject-introspection and Mozilla
@@ -26,6 +26,7 @@ Group:          Development/Libraries/GNOME
 Url:            http://live.gnome.org/Gjs
 Source:         http://download.gnome.org/sources/gjs/1.47/%{name}-%{version}.tar.xz
 BuildRequires:  gcc-c++
+BuildRequires:  mozjs38
 BuildRequires:  python
 BuildRequires:  readline-devel
 BuildRequires:  systemtap-sdt-devel
@@ -33,7 +34,7 @@ BuildRequires:  pkgconfig(cairo)
 BuildRequires:  pkgconfig(cairo-xlib)
 BuildRequires:  pkgconfig(dbus-glib-1)
 BuildRequires:  pkgconfig(glib-2.0) >= 2.36.0
-BuildRequires:  pkgconfig(gobject-introspection-1.0) >= 1.41.4
+BuildRequires:  pkgconfig(gobject-introspection-1.0) >= 1.51.2
 BuildRequires:  pkgconfig(gtk+-3.0) >= 3.20
 BuildRequires:  pkgconfig(libffi)
 BuildRequires:  pkgconfig(mozjs-38)
@@ -83,7 +84,8 @@ Mozilla SpiderMonkey JavaScript engine.
 %build
 %configure \
     --disable-static \
-    --enable-systemtap
+    --enable-systemtap \
+    JS_INTERP=%{_bindir}/js
 make -j1 V=1
 
 %install