diff --git a/fix_glslang_include.patch b/fix_glslang_include.patch
new file mode 100644
index 0000000..2ac7f44
--- /dev/null
+++ b/fix_glslang_include.patch
@@ -0,0 +1,12 @@
+--- a/src/glsl/glslang.cc
++++ b/src/glsl/glslang.cc
+@@ -25,7 +25,7 @@
+ #include <glslang/Include/ResourceLimits.h>
+ #include <glslang/Include/revision.h>
+ #include <glslang/Public/ShaderLang.h>
+-#include <SPIRV/GlslangToSpv.h>
++#include <glslang/SPIRV/GlslangToSpv.h>
+ 
+ #include "glslang.h"
+ 
+
diff --git a/libplacebo.spec b/libplacebo.spec
index 1e3548b..572cbf1 100644
--- a/libplacebo.spec
+++ b/libplacebo.spec
@@ -1,11 +1,12 @@
 Name:           libplacebo
-Version:        1.18.0
-Release:        3%{?dist}
+Version:        1.21.0
+Release:        1%{?dist}
 Summary:        Reusable library for GPU-accelerated video/image rendering primitives
 
 License:        LGPLv2+
 URL:            https://github.com/haasn/libplacebo
 Source0:        %{url}/archive/v%{version}/%{name}-%{version}.tar.gz
+Patch0:         fix_glslang_include.patch
 
 BuildRequires:  gcc
 BuildRequires:  gcc-c++
@@ -76,7 +77,7 @@ developing applications that use %{name}.
 %files
 %license LICENSE
 %doc README.md
-%{_libdir}/libplacebo.so.18
+%{_libdir}/libplacebo.so.21
 
 %files devel
 %{_includedir}/*
@@ -85,6 +86,9 @@ developing applications that use %{name}.
 
 
 %changelog
+* Thu Dec 19 2019 Leigh Scott <leigh123linux@googlemail.com> - 1.21.0-1
+- Update to 1.21.0
+
 * Thu Jul 25 2019 Fedora Release Engineering <releng@fedoraproject.org> - 1.18.0-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
 
diff --git a/sources b/sources
index c52c239..eb19f33 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (libplacebo-1.18.0.tar.gz) = 3115bbd019f4555340e64590e844de61a5fd4f02392b38a34d69059be79dcaeffc3d74b720568fb2f7f974409a8ff5feff83f7d6b7fdb2228af8761b78395339
+SHA512 (libplacebo-1.21.0.tar.gz) = 63b2824b49847aacca703dbb360c6e029ab23578b2ade1cd8f7c46e751aefc40509bd13261ea018c089f6331c6cafbdc0364106d95eaa3fb06b24f61eb726a23