diff --git a/.gitignore b/.gitignore
index 299545d..19bf38f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -60,3 +60,6 @@ qgis_1.5.0.tar.gz
 /qgis-3.16.2.tar.bz2
 /qgis-3.16.3.tar.bz2
 /qgis-3.18.0.tar.bz2
+/qgis-3.18.1.tar.bz2
+/qgis-3.18.2.tar.bz2
+/qgis-3.18.3.tar.bz2
diff --git a/qgis-lib64.patch b/qgis-lib64.patch
index 00c416f..5b912c1 100644
--- a/qgis-lib64.patch
+++ b/qgis-lib64.patch
@@ -1,6 +1,6 @@
-diff -rupN --no-dereference qgis-3.18.0/cmake/PyQtMacros.cmake qgis-3.18.0-new/cmake/PyQtMacros.cmake
---- qgis-3.18.0/cmake/PyQtMacros.cmake	2021-02-19 13:09:46.000000000 +0100
-+++ qgis-3.18.0-new/cmake/PyQtMacros.cmake	2021-02-19 18:17:53.426724683 +0100
+diff -rupN --no-dereference qgis-3.18.1/cmake/PyQtMacros.cmake qgis-3.18.1-new/cmake/PyQtMacros.cmake
+--- qgis-3.18.1/cmake/PyQtMacros.cmake	2021-03-19 13:09:08.000000000 +0100
++++ qgis-3.18.1-new/cmake/PyQtMacros.cmake	2021-03-24 00:58:44.476156905 +0100
 @@ -36,7 +36,7 @@ MACRO(PYQT_WRAP_UI outfiles )
    ELSE(CMAKE_HOST_WIN32)
      # TODO osx
diff --git a/qgis-serverprefix.patch b/qgis-serverprefix.patch
index 6914afc..d85364c 100644
--- a/qgis-serverprefix.patch
+++ b/qgis-serverprefix.patch
@@ -1,7 +1,7 @@
-diff -rupN --no-dereference qgis-3.18.0/src/core/qgsapplication.cpp qgis-3.18.0-new/src/core/qgsapplication.cpp
---- qgis-3.18.0/src/core/qgsapplication.cpp	2021-02-19 13:09:46.000000000 +0100
-+++ qgis-3.18.0-new/src/core/qgsapplication.cpp	2021-02-19 18:17:55.300724539 +0100
-@@ -307,6 +307,11 @@ void QgsApplication::init( QString profi
+diff -rupN --no-dereference qgis-3.18.1/src/core/qgsapplication.cpp qgis-3.18.1-new/src/core/qgsapplication.cpp
+--- qgis-3.18.1/src/core/qgsapplication.cpp	2021-03-19 13:09:08.000000000 +0100
++++ qgis-3.18.1-new/src/core/qgsapplication.cpp	2021-03-24 00:58:46.103156947 +0100
+@@ -311,6 +311,11 @@ void QgsApplication::init( QString profi
          {
            myDir.cdUp();
          }
diff --git a/qgis.spec b/qgis.spec
index 09bb2a2..ccca2ee 100644
--- a/qgis.spec
+++ b/qgis.spec
@@ -7,7 +7,7 @@
 #TODO: Run test suite (see debian/rules)
 
 Name:           qgis
-Version:        3.18.0
+Version:        3.18.3
 Release:        1%{?dist}
 Summary:        A user friendly Open Source Geographic Information System
 
@@ -29,7 +29,8 @@ Source5:        %{name}-mime.xml
 Patch0:         %{name}-lib64.patch
 # Fix QGIS Server prefix calculation
 Patch1:         %{name}-serverprefix.patch
-
+# Fix for Proj8 detection
+Patch2:         %{name}_proj8.patch
 
 BuildRequires:  cmake
 BuildRequires:  desktop-file-utils
@@ -44,6 +45,7 @@ BuildRequires:  grass-devel
 BuildRequires:  gsl-devel
 BuildRequires:  libspatialite-devel
 BuildRequires:  libdxfrw-devel
+BuildRequires:  libxml2-devel
 BuildRequires:  libzip-devel
 BuildRequires:  make
 BuildRequires:  netcdf-devel
@@ -294,6 +296,21 @@ rm -f %{buildroot}%{_datadir}/%{name}/doc/INSTALL*
 
 
 %changelog
+* Sun May 16 2021 Sandro Mani <manisandro@gmail.com> - 3.18.3-1
+- Update to 3.18.3
+
+* Sat Apr 17 2021 Sandro Mani <manisandro@gmail.com> - 3.18.2-1
+- Update to 3.18.2
+
+* Wed Mar 31 2021 Jonathan Wakely <jwakely@redhat.com> - 3.18.1-2
+- Rebuilt for removed libstdc++ symbols (#1937698)
+
+* Wed Mar 24 2021 sandro Mani <manisandro@gmail.com> - 3.18.1-1
+- Update to 3.18.1
+
+* Tue Mar 30 2021 Jonathan Wakely <jwakely@redhat.com> - 3.18.0-2
+- Rebuilt for removed libstdc++ symbol (#1937698)
+
 * Fri Feb 19 2021 Sandro Mani <manisandro@gmail.com> - 3.18.0-1
 - Update to 3.18.0
 
diff --git a/qgis_proj8.patch b/qgis_proj8.patch
new file mode 100644
index 0000000..4bf6c59
--- /dev/null
+++ b/qgis_proj8.patch
@@ -0,0 +1,16 @@
+diff -rupN qgis-3.18.1/cmake/FindProj.cmake qgis-3.18.1-new/cmake/FindProj.cmake
+--- qgis-3.18.1/cmake/FindProj.cmake	2021-03-19 13:09:08.000000000 +0100
++++ qgis-3.18.1-new/cmake/FindProj.cmake	2021-03-24 10:05:30.492088939 +0100
+@@ -40,6 +40,12 @@ FIND_PATH(PROJ_INCLUDE_DIR proj_api.h
+   "$ENV{INCLUDE}"
+   "$ENV{LIB_DIR}/include"
+   )
++IF (NOT PROJ_INCLUDE_DIR)
++  FIND_PATH(PROJ_INCLUDE_DIR proj.h
++    "$ENV{INCLUDE}"
++    "$ENV{LIB_DIR}/include"
++    )
++ENDIF (NOT PROJ_INCLUDE_DIR)
+ 
+ FIND_LIBRARY(PROJ_LIBRARY NAMES proj_i proj PATHS
+   "$ENV{LIB}"
diff --git a/sources b/sources
index aac6e12..6d26b10 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (qgis-3.18.0.tar.bz2) = 881709f781f8594153509e622361223608547b211cdfd570511eef563be8c4ac2ca388caf3d46211f583241d0e12435c957a8367218a78255022bc047ba24572
+SHA512 (qgis-3.18.3.tar.bz2) = d2c08f1f0bdb2ba56a108dc9626122dfe90caae4f300ceb7be2d40112ee9bcc7f286f092f7f207812428aca926c7fe0dabe49039bba0f32f2f371d290536f0ef