diff --git a/.gitignore b/.gitignore
index ddb9b16..329ca55 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,5 @@
 /firefox-115.3.0esr.source.tar.xz
 /firefox-115.3.1esr.source.tar.xz
 /firefox-115.6.0esr.source.tar.xz
+/firefox-115.7.0esr.source.tar.xz
+/firefox-115.12.0esr.source.tar.xz
diff --git a/known_failures.txt b/known_failures.txt
index 51e4887..dcce71b 100644
--- a/known_failures.txt
+++ b/known_failures.txt
@@ -1,8 +1,43 @@
-non262/Intl/available-locales-supported.js
 non262/Intl/available-locales-resolved.js
-non262/Intl/supportedValuesOf-timeZones-canonical.js
+non262/Intl/available-locales-supported.js
 non262/Intl/Collator/big5han-gb2312han.js
 non262/Intl/Collator/implicithan.js
-non262/Intl/DateTimeFormat/fractional-second-digits-append-item.js
 non262/Intl/DateTimeFormat/day-period-hour-cycle.js
-non262/Intl/DateTimeFormat/timeZone_backzone.js
\ No newline at end of file
+non262/Intl/DateTimeFormat/fractional-second-digits-append-item.js
+non262/Intl/DateTimeFormat/related-year.js
+non262/Intl/DateTimeFormat/timeZone_backzone.js
+non262/Intl/DateTimeFormat/timeZone_version.js
+non262/Intl/DisplayNames/calendar.js
+non262/Intl/DisplayNames/currency.js
+non262/Intl/DisplayNames/language-dialect.js
+non262/Intl/ListFormat/conjunction-type.js
+non262/Intl/Locale/likely-subtags-generated.js
+non262/Intl/Locale/likely-subtags.js
+non262/Intl/supportedValuesOf-timeZones-canonical.js
+non262/Intl/supportedValuesOf-timeZones.js
+test262/built-ins/RegExp/property-escapes/generated/Alphabetic.js
+test262/built-ins/RegExp/property-escapes/generated/Assigned.js
+test262/built-ins/RegExp/property-escapes/generated/General_Category_-_Letter.js
+test262/built-ins/RegExp/property-escapes/generated/General_Category_-_Other_Letter.js
+test262/built-ins/RegExp/property-escapes/generated/General_Category_-_Other_Symbol.js
+test262/built-ins/RegExp/property-escapes/generated/General_Category_-_Other.js
+test262/built-ins/RegExp/property-escapes/generated/General_Category_-_Symbol.js
+test262/built-ins/RegExp/property-escapes/generated/General_Category_-_Unassigned.js
+test262/built-ins/RegExp/property-escapes/generated/Grapheme_Base.js
+test262/built-ins/RegExp/property-escapes/generated/ID_Continue.js
+test262/built-ins/RegExp/property-escapes/generated/ID_Start.js
+test262/built-ins/RegExp/property-escapes/generated/Ideographic.js
+test262/built-ins/RegExp/property-escapes/generated/IDS_Binary_Operator.js
+test262/built-ins/RegExp/property-escapes/generated/Script_-_Common.js
+test262/built-ins/RegExp/property-escapes/generated/Script_-_Han.js
+test262/built-ins/RegExp/property-escapes/generated/Script_Extensions_-_Common.js
+test262/built-ins/RegExp/property-escapes/generated/Script_Extensions_-_Han.js
+test262/built-ins/RegExp/property-escapes/generated/Script_Extensions_-_Malayalam.js
+test262/built-ins/RegExp/property-escapes/generated/Script_Extensions_-_Sharada.js
+test262/built-ins/RegExp/property-escapes/generated/Script_Extensions_-_Sinhala.js
+test262/built-ins/RegExp/property-escapes/generated/Sentence_Terminal.js
+test262/built-ins/RegExp/property-escapes/generated/Unified_Ideograph.js
+test262/built-ins/RegExp/property-escapes/generated/XID_Continue.js
+test262/built-ins/RegExp/property-escapes/generated/XID_Start.js
+test262/intl402/Intl/supportedValuesOf/timeZones-accepted-by-DateTimeFormat.js
+test262/intl402/Locale/likely-subtags.js
\ No newline at end of file
diff --git a/mozjs115.spec b/mozjs115.spec
index dac031a..ddce9ad 100644
--- a/mozjs115.spec
+++ b/mozjs115.spec
@@ -26,7 +26,7 @@
 %endif
 
 Name:           mozjs%{major}
-Version:        115.6.0
+Version:        115.12.0
 Release:        %autorelease -e 0.riscv64
 Summary:        SpiderMonkey JavaScript library
 
@@ -63,6 +63,9 @@ Patch20:        spidermonkey_checks_disable.patch
 # s390x/ppc64 fixes
 Patch21:        0001-Skip-failing-tests-on-ppc64-and-s390x.patch
 
+# Tests Fixes
+Patch30:        tests-Replace-pipes-with-shlex-for-Python-3.13.patch
+
 BuildRequires:  cargo
 %if !0%{?rhel}
 BuildRequires:  ccache
@@ -103,10 +106,7 @@ The %{name}-devel package contains libraries and header files for
 developing applications that use %{name}.
 
 %prep
-%autosetup -n firefox-%{version}/js/src -N
-
-pushd ../..
-%autopatch -p1
+%autosetup -n firefox-%{version} -p1
 
 # Purge the bundled six library incompatible with Python 3.12
 rm third_party/python/six/six.py
@@ -128,8 +128,6 @@ rm -rf js/src/devtools/automation/variants/
 rm -rf js/src/octane/
 rm -rf js/src/ctypes/libffi/
 
-popd
-
 %build
 %if 0%{?build_with_lto}
 # https://github.com/ptomato/mozjs/commit/36bb7982b41e0ef9a65f7174252ab996cd6777bd
@@ -139,11 +137,11 @@ export CARGO_PROFILE_RELEASE_LTO=true
 # Use bundled autoconf
 export M4=m4
 export AWK=awk
-export AC_MACRODIR=/builddir/build/BUILD/firefox-%{version}/build/autoconf/
+export AC_MACRODIR=./build/autoconf/
 
+pushd js/src/
 #sh ../../build/autoconf/autoconf.sh --localdir=/builddir/build/BUILD/firefox-%%{version}/js/src configure.in > configure
 #chmod +x configure
-
 %configure \
   --with-system-icu \
   --with-system-zlib \
@@ -160,6 +158,7 @@ export AC_MACRODIR=/builddir/build/BUILD/firefox-%{version}/build/autoconf/
 %make_build
 
 %install
+pushd js/src/
 %make_install
 
 # Fix permissions
@@ -213,6 +212,7 @@ ln -s libmozjs-%{major}.so.0.0.0 %{buildroot}%{_libdir}/libmozjs-%{major}.so.0
 ln -s libmozjs-%{major}.so.0 %{buildroot}%{_libdir}/libmozjs-%{major}.so
 
 %check
+pushd js/src/
 # Run SpiderMonkey tests
 %if 0%{?require_tests}
 %{python3} tests/jstests.py -d -s -t 2400 --exclude-file=known_failures.txt --no-progress --wpt=disabled ../../js/src/dist/bin/js%{major}
@@ -235,8 +235,8 @@ ln -s libmozjs-%{major}.so.0 %{buildroot}%{_libdir}/libmozjs-%{major}.so
 %endif
 
 %files
-%doc README.html
-%license LICENSE
+%doc js/src/README.html
+%license js/src/LICENSE
 %{_libdir}/libmozjs-%{major}.so.0*
 
 %files devel
diff --git a/sources b/sources
index b3ad1f7..4cc0c1a 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (firefox-115.6.0esr.source.tar.xz) = 9fe23b5f715e35b788d9c8fefe6b7be8785789b4ae6f5649b05a54221934101c6e1b9580319145f9bcaebfbd00fcc33e97afb63f7d57ba102a6b02c874d324af
+SHA512 (firefox-115.12.0esr.source.tar.xz) = d98475061d870e0f3aa920b7c0b9b0c1cbdb3f4102f760f1d1c5ea3e45e216c673c8d3662501e7e78af4950a003a519e94b57e9b1eda8d615c159cdf62130e89
diff --git a/tests-Replace-pipes-with-shlex-for-Python-3.13.patch b/tests-Replace-pipes-with-shlex-for-Python-3.13.patch
new file mode 100644
index 0000000..50c49de
--- /dev/null
+++ b/tests-Replace-pipes-with-shlex-for-Python-3.13.patch
@@ -0,0 +1,32 @@
+From dae1848488117166227b00cd7dcadf704b770339 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Franti=C5=A1ek=20Zatloukal?= <fzatlouk@redhat.com>
+Date: Wed, 12 Jun 2024 15:56:03 +0200
+Subject: [PATCH] tests: Replace pipes with shlex for Python 3.13
+
+---
+ js/src/tests/lib/results.py | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/js/src/tests/lib/results.py b/js/src/tests/lib/results.py
+index f902060..ba0c7c6 100644
+--- a/js/src/tests/lib/results.py
++++ b/js/src/tests/lib/results.py
+@@ -1,5 +1,5 @@
+ import json
+-import pipes
++import shlex
+ import re
+ 
+ from .progressbar import NullProgressBar, ProgressBar
+@@ -9,7 +9,7 @@ from .structuredlog import TestLogger
+ 
+ 
+ def escape_cmdline(args):
+-    return " ".join([pipes.quote(a) for a in args])
++    return " ".join([shlex.quote(a) for a in args])
+ 
+ 
+ class TestOutput:
+-- 
+2.45.1
+