diff --git a/.gitignore b/.gitignore
index c9133d2..255ed61 100644
--- a/.gitignore
+++ b/.gitignore
@@ -139,3 +139,4 @@ gjs-0.7.1.tar.gz
 /gjs-1.76.1.tar.xz
 /gjs-1.76.2.tar.xz
 /gjs-1.77.1.tar.xz
+/gjs-1.77.2.tar.xz
diff --git a/gjs.spec b/gjs.spec
index c988138..04b8756 100644
--- a/gjs.spec
+++ b/gjs.spec
@@ -1,10 +1,10 @@
 %global glib2_version 2.66.0
 %global gobject_introspection_version 1.66.0
-%global mozjs102_version 102.12.0
+%global mozjs115_version 115.1.0
 
 Name:           gjs
-Version:        1.77.1
-Release:        2%{?dist}
+Version:        1.77.2
+Release:        1%{?dist}
 Summary:        Javascript Bindings for GNOME
 
 # The following files contain code from Mozilla which
@@ -23,7 +23,7 @@ BuildRequires:  pkgconfig(cairo-gobject)
 BuildRequires:  pkgconfig(gio-2.0) >= %{glib2_version}
 BuildRequires:  pkgconfig(gobject-introspection-1.0) >= %{gobject_introspection_version}
 BuildRequires:  pkgconfig(gtk4)
-BuildRequires:  pkgconfig(mozjs-102) >= %{mozjs102_version}
+BuildRequires:  pkgconfig(mozjs-115) >= %{mozjs115_version}
 BuildRequires:  pkgconfig(sysprof-capture-4)
 # For GTK+ 3 tests
 BuildRequires:  gtk3
@@ -36,7 +36,7 @@ BuildRequires:  xorg-x11-server-Xvfb
 
 Requires: glib2%{?_isa} >= %{glib2_version}
 Requires: gobject-introspection%{?_isa} >= %{gobject_introspection_version}
-Requires: mozjs102%{?_isa} >= %{mozjs102_version}
+Requires: mozjs115%{?_isa} >= %{mozjs115_version}
 
 %description
 Gjs allows using GNOME libraries from Javascript. It's based on the
@@ -94,6 +94,10 @@ the functionality of the installed gjs package.
 %{_datadir}/installed-tests/
 
 %changelog
+* Thu Aug 10 2023 Kalev Lember <klember@redhat.com> - 1.77.2-1
+- Update to 1.77.2
+- Switch to mozjs115
+
 * Wed Jul 19 2023 Fedora Release Engineering <releng@fedoraproject.org> - 1.77.1-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild
 
diff --git a/sources b/sources
index 08a9bd9..f1ea837 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (gjs-1.77.1.tar.xz) = 2a94406725a59e05485ebfcc6ba6b2a0c26f40833a46d6520caff576dd8495a14eb733cf0788af1ea4b5c9c11edd692637db41f6350fb4a3bf2e1c01267130cc
+SHA512 (gjs-1.77.2.tar.xz) = 2b804e6b039801b55e9d700794e390c927b00e2dd738dcada95867b3ba957e1a193367c2babb4a941b8aead301ca68e5b8ece655a13a3989708072a96600eba4