diff --git a/qgis-gcc13.patch b/qgis-gcc13.patch
new file mode 100644
index 0000000..353ba2b
--- /dev/null
+++ b/qgis-gcc13.patch
@@ -0,0 +1,32 @@
+diff -rupN qgis-3.28.2/external/lazperf/Extractor.hpp qgis-3.28.2-new/external/lazperf/Extractor.hpp
+--- qgis-3.28.2/external/lazperf/Extractor.hpp	2022-12-16 13:04:31.000000000 +0100
++++ qgis-3.28.2-new/external/lazperf/Extractor.hpp	2023-01-20 21:42:05.172793756 +0100
+@@ -34,6 +34,7 @@
+ 
+ #pragma once
+ 
++#include <cstdint>
+ #include <cstring>
+ #include <vector>
+ 
+diff -rupN qgis-3.28.2/external/untwine/api/QgisUntwine.hpp qgis-3.28.2-new/external/untwine/api/QgisUntwine.hpp
+--- qgis-3.28.2/external/untwine/api/QgisUntwine.hpp	2022-12-16 13:04:31.000000000 +0100
++++ qgis-3.28.2-new/external/untwine/api/QgisUntwine.hpp	2023-01-20 22:35:19.827300165 +0100
+@@ -1,5 +1,6 @@
+ #pragma once
+ 
++#include <cstdint>
+ #include <map>
+ #include <string>
+ #include <vector>
+diff -rupN qgis-3.28.2/external/untwine/untwine/VoxelKey.hpp qgis-3.28.2-new/external/untwine/untwine/VoxelKey.hpp
+--- qgis-3.28.2/external/untwine/untwine/VoxelKey.hpp	2022-12-16 13:04:31.000000000 +0100
++++ qgis-3.28.2-new/external/untwine/untwine/VoxelKey.hpp	2023-01-20 21:20:18.264009376 +0100
+@@ -12,6 +12,7 @@
+ 
+ #include <string>
+ #include <algorithm>
++#include <cstdint>
+ 
+ #pragma once
+ 
diff --git a/qgis.spec b/qgis.spec
index 57513ea..37c75ee 100644
--- a/qgis.spec
+++ b/qgis.spec
@@ -28,6 +28,8 @@ Patch0:         %{name}-serverprefix.patch
 Patch1:         %{name}-yarn-offline.patch
 # Fix build against qwt-6.2
 Patch2:         %{name}-qwt.patch
+# Fix GCC13 FTBFS
+Patch3:         %{name}-gcc13.patch
 
 BuildRequires:  cmake
 BuildRequires:  desktop-file-utils