diff --git a/.gitignore b/.gitignore
index dda4116..2d4af0e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -93,3 +93,5 @@
 /libcxx-14.0.5.src.tar.xz
 /libcxx-15.0.0.src.tar.xz
 /libcxx-15.0.0.src.tar.xz.sig
+/libcxx-15.0.4.src.tar.xz
+/libcxx-15.0.4.src.tar.xz.sig
diff --git a/libcxx.spec b/libcxx.spec
index ce940cb..8dc21ea 100644
--- a/libcxx.spec
+++ b/libcxx.spec
@@ -3,13 +3,13 @@
 %global toolchain clang
 %global bootstrap 0
 
-%global libcxx_version 15.0.0
+%global libcxx_version 15.0.4
 #global rc_ver 3
 %global libcxx_srcdir libcxx-%{libcxx_version}%{?rc_ver:rc%{rc_ver}}.src
 
 Name:		libcxx
 Version:	%{libcxx_version}%{?rc_ver:~rc%{rc_ver}}
-Release:	2%{?dist}
+Release:	1%{?dist}
 Summary:	C++ standard library targeting C++11
 License:	MIT or NCSA
 URL:		http://libcxx.llvm.org/
@@ -160,6 +160,9 @@ install -m 0644 src/include/*.h %{buildroot}%{_includedir}/libcxx-internal/
 
 
 %changelog
+* Tue Nov 08 2022 Nikita Popov <npopov@redhat.com> - 15.0.4-1
+- Update to LLVM 15.0.4
+
 * Tue Sep 13 2022 Nikita Popov <npopov@redhat.com> - 15.0.0-2
 - Link libc++.a against libc++abi.a
 
diff --git a/sources b/sources
index a56f5b0..ff73f3e 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (libcxx-15.0.0.src.tar.xz) = bfc8dcde5f89d3890e32579b2f894075b49bd8e50633b7bb2469864ddf26afb42ff65201e476451eeeaf5f15235891e8031979d78e3b30a3d641bfc85adbbaad
-SHA512 (libcxx-15.0.0.src.tar.xz.sig) = d038afbcd143fcfdea4033e37771aa659b95519e74bc0cd55537085a9ce68d2b5f471db2ad2567766ada7bf82d3014c36f55461e2847efa48a688334eaf2b11a
+SHA512 (libcxx-15.0.4.src.tar.xz) = 4d03a945e1625d4c7293c57e5432a782deb47d701895874fa6d518c835b1f84fdf3c00076155e17e825d0c72f6faccbc1c9394183fe9ffd70fce8e1cdcb85e3a
+SHA512 (libcxx-15.0.4.src.tar.xz.sig) = 23d99a7b92e83224a6a808fad474152d3007663cb9b96bad2cb66ac153064cd949a8998dd37f0469c3a9180efd1a0f00d5827cdb2e0508fea9db0b88e20730a1