diff --git a/.gitignore b/.gitignore
index 253bd12..ccd45c4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 /lerc-b1de4cd.tar.gz
+/lerc-4.0.0.tar.gz
diff --git a/lerc-dllver.patch b/lerc-dllver.patch
index e33fd8d..a318f81 100644
--- a/lerc-dllver.patch
+++ b/lerc-dllver.patch
@@ -1,6 +1,6 @@
-diff -rupN lerc-b1de4cd146f73e9a679682e209de1ecde1ca094e/CMakeLists.txt lerc-b1de4cd146f73e9a679682e209de1ecde1ca094e-new/CMakeLists.txt
---- lerc-b1de4cd146f73e9a679682e209de1ecde1ca094e/CMakeLists.txt	2022-05-05 21:45:53.000000000 +0200
-+++ lerc-b1de4cd146f73e9a679682e209de1ecde1ca094e-new/CMakeLists.txt	2022-05-06 17:59:32.035158986 +0200
+diff -rupN --no-dereference lerc-4.0.0/CMakeLists.txt lerc-4.0.0-new/CMakeLists.txt
+--- lerc-4.0.0/CMakeLists.txt	2022-07-15 20:25:29.000000000 +0200
++++ lerc-4.0.0-new/CMakeLists.txt	2022-07-21 10:44:37.727098109 +0200
 @@ -30,6 +30,9 @@ if(BUILD_SHARED_LIBS)
          PROPERTIES
          SOVERSION ${CMAKE_PROJECT_VERSION_MAJOR}
diff --git a/liblerc.spec b/liblerc.spec
index ecc994c..51a2c2b 100644
--- a/liblerc.spec
+++ b/liblerc.spec
@@ -1,20 +1,13 @@
-%global commit b1de4cd146f73e9a679682e209de1ecde1ca094e
-%global shortcommit %(c=%{commit}; echo ${c:0:7})
-
 %bcond_without mingw
 
 Name:           liblerc
-Version:        3.1
-Release:        0.3%{?commit:.git%{shortcommit}}%{?dist}
+Version:        4.0.0
+Release:        1%{?dist}
 Summary:        Library for Limited Error Raster Compression
 
 License:        ASL 2.0
 URL:            https://github.com/Esri/lerc
-%if 0%{?commit:1}
-Source0:        https://github.com/Esri/lerc/archive/%{commit}/lerc-%{shortcommit}.tar.gz
-%else
 Source0:        https://github.com/Esri/lerc/archive/v%{version}/lerc-%{version}.tar.gz
-%endif
 # Add version suffix to mingw dll
 Patch0:         lerc-dllver.patch
 
@@ -65,11 +58,7 @@ BuildArch:     noarch
 
 
 %prep
-%if 0%{?commit:1}
-%autosetup -p1 -n lerc-%{commit}
-%else
-%autosetup -p1 -n lerc-v%{version}
-%endif
+%autosetup -p1 -n lerc-%{version}
 
 # Fix line endings
 sed -i 's/\r$//' NOTICE README.md doc/MORE.md
@@ -97,7 +86,7 @@ sed -i 's/\r$//' NOTICE README.md doc/MORE.md
 %files
 %license LICENSE
 %doc README.md CHANGELOG.md NOTICE
-%{_libdir}/libLerc.so.3
+%{_libdir}/libLerc.so.4
 
 %files devel
 %doc doc/*
@@ -109,7 +98,7 @@ sed -i 's/\r$//' NOTICE README.md doc/MORE.md
 %if %{with mingw}
 %files -n mingw32-%{name}
 %license LICENSE
-%{mingw32_bindir}/libLerc-3.dll
+%{mingw32_bindir}/libLerc-4.dll
 %{mingw32_includedir}/Lerc_c_api.h
 %{mingw32_includedir}/Lerc_types.h
 %{mingw32_libdir}/libLerc.dll.a
@@ -117,7 +106,7 @@ sed -i 's/\r$//' NOTICE README.md doc/MORE.md
 
 %files -n mingw64-%{name}
 %license LICENSE
-%{mingw64_bindir}/libLerc-3.dll
+%{mingw64_bindir}/libLerc-4.dll
 %{mingw64_includedir}/Lerc_c_api.h
 %{mingw64_includedir}/Lerc_types.h
 %{mingw64_libdir}/libLerc.dll.a
@@ -126,6 +115,9 @@ sed -i 's/\r$//' NOTICE README.md doc/MORE.md
 
 
 %changelog
+* Thu Jul 21 2022 Sandro Mani <manisandro@gmail.com> - 4.0.0-1
+- Update to 4.0.0
+
 * Mon Jul 11 2022 Sandro Mani <manisandro@gmail.com> - 3.1-0.3.gitb1de4cd
 - Re-enable mingw32 on EL9
 
diff --git a/sources b/sources
index c78e383..4f026a6 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (lerc-b1de4cd.tar.gz) = c7dad83b68a39523d35462ef7a0edf659d09605d8233a714a0977cf3dada153b8f113b17f7b80641999ecc205e3ef5be9715d62bf565d09317fbcc61896dda0d
+SHA512 (lerc-4.0.0.tar.gz) = 36fe453b6e732f6bed554d1c1c5cd4668aec63593d6de11f12b659c7b9cbc059ac9aaacc6cea483b3257d522f1b07e13c299914d08b1f8aeb0bb2cde42ba47cf