diff --git a/.gitignore b/.gitignore
index 47308dc..b579fca 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1 @@
-SOURCES/libebml-1.4.2.tar.xz
+SOURCES/libebml-1.4.5.tar.xz
diff --git a/.libebml.metadata b/.libebml.metadata
index 1c39f46..e50dbee 100644
--- a/.libebml.metadata
+++ b/.libebml.metadata
@@ -1 +1 @@
-a5e545d1bf22abf8b6722f4bc2d2034bb61b2d46  SOURCES/libebml-1.4.2.tar.xz
+4363f762c74695928021b84f0d8620dbb1a69ff8  SOURCES/libebml-1.4.5.tar.xz
diff --git a/SOURCES/libebml-gcc11.patch b/SOURCES/libebml-gcc11.patch
deleted file mode 100644
index 859f763..0000000
--- a/SOURCES/libebml-gcc11.patch
+++ /dev/null
@@ -1,22 +0,0 @@
-diff -up libebml-1.4.2/src/EbmlString.cpp.gcc11 libebml-1.4.2/src/EbmlString.cpp
---- libebml-1.4.2/src/EbmlString.cpp.gcc11	2021-02-18 12:42:59.000000000 +0100
-+++ libebml-1.4.2/src/EbmlString.cpp	2021-03-01 11:42:02.122854703 +0100
-@@ -34,6 +34,7 @@
-   \author Steve Lhomme     <robux4 @ users.sf.net>
- */
- #include <cassert>
-+#include <limits>
- 
- #include "ebml/EbmlString.h"
- 
-diff -up libebml-1.4.2/src/EbmlUnicodeString.cpp.gcc11 libebml-1.4.2/src/EbmlUnicodeString.cpp
---- libebml-1.4.2/src/EbmlUnicodeString.cpp.gcc11	2021-03-01 11:42:02.121854696 +0100
-+++ libebml-1.4.2/src/EbmlUnicodeString.cpp	2021-03-01 11:42:21.772995170 +0100
-@@ -36,6 +36,7 @@
- */
- 
- #include <cassert>
-+#include <limits>
- 
- #include "ebml/EbmlUnicodeString.h"
- 
diff --git a/SOURCES/libebml-use-system-utf8cpp.patch b/SOURCES/libebml-use-system-utf8cpp.patch
index 3003e1a..cae9cc4 100644
--- a/SOURCES/libebml-use-system-utf8cpp.patch
+++ b/SOURCES/libebml-use-system-utf8cpp.patch
@@ -1,12 +1,12 @@
-diff -up libebml-1.3.7/src/EbmlUnicodeString.cpp.utf8cpp libebml-1.3.7/src/EbmlUnicodeString.cpp
---- libebml-1.3.7/src/EbmlUnicodeString.cpp.utf8cpp	2019-03-12 20:27:42.000000000 +0100
-+++ libebml-1.3.7/src/EbmlUnicodeString.cpp	2019-06-07 22:54:39.002363241 +0200
-@@ -39,7 +39,7 @@
+diff -up libebml-1.4.4/src/EbmlUnicodeString.cpp.utf8cpp libebml-1.4.4/src/EbmlUnicodeString.cpp
+--- libebml-1.4.4/src/EbmlUnicodeString.cpp.utf8cpp	2022-10-11 13:11:14.129418820 +0200
++++ libebml-1.4.4/src/EbmlUnicodeString.cpp	2022-10-11 13:11:44.405608490 +0200
+@@ -40,7 +40,7 @@
  
  #include "ebml/EbmlUnicodeString.h"
  
 -#include "lib/utf8-cpp/source/utf8/checked.h"
 +#include <utf8/checked.h>
  
- START_LIBEBML_NAMESPACE
+ namespace libebml {
  
diff --git a/SPECS/libebml.spec b/SPECS/libebml.spec
index 1425a06..a1d8d9c 100644
--- a/SPECS/libebml.spec
+++ b/SPECS/libebml.spec
@@ -1,20 +1,14 @@
-%if 0%{?el9}
-%global _without_utf8cpp 1
-%endif
-
 Summary:    Extensible Binary Meta Language library
 Name:       libebml
-Version:    1.4.2
-Release:    3%{?dist}
+Version:    1.4.5
+Release:    1%{?dist}
 License:    LGPLv2+
 URL:        https://www.matroska.org/
 Source:     https://dl.matroska.org/downloads/%{name}/%{name}-%{version}.tar.xz
 Patch0:     %{name}-use-system-utf8cpp.patch
-# https://github.com/Matroska-Org/libebml/pull/81
-Patch1:     %{name}-gcc11.patch
 BuildRequires: cmake3
 BuildRequires: gcc-c++
-%{!?_without_utf8cpp:BuildRequires: utf8cpp-devel}
+BuildRequires: utf8cpp-devel
 
 %description
 Extensible Binary Meta Language access library A library for reading
@@ -39,11 +33,8 @@ will use the Extensible Binary Meta Language library.
 
 %prep
 %setup -q
-%{!?_without_utf8cpp:
 %patch0 -p1 -b .utf8cpp
 rm -r src/lib/utf8-cpp
-}
-%patch1 -p1 -b .gcc11dd
 
 
 %build
@@ -60,7 +51,7 @@ rm -r src/lib/utf8-cpp
 
 %files
 %license LICENSE.LGPL
-%doc ChangeLog
+%doc NEWS.md
 %{_libdir}/%{name}.so.5*
 
 %files devel
@@ -75,9 +66,23 @@ rm -r src/lib/utf8-cpp
 
 
 %changelog
-* Mon Jul 24 2023 Arkady L. Shane <ashejn@msvsphere.ru> - 1.4.2-3
+* Fri Feb 02 2024 Dominik Mierzejewski <dominik@greysector.net> - 1.4.5-1
+- update to 1.4.5 (#2254413)
+- fixes CVE-2023-52339 (#2258046, #2258047)
+
+* Mon Jul 24 2023 Arkady L. Shane <ashejn@msvsphere.ru> - 1.4.4-2
 - Rebuilt for MSVSphere 9.2
 
+* Thu Jan 19 2023 Fedora Release Engineering <releng@fedoraproject.org> - 1.4.4-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild
+
+* Tue Oct 11 2022 Dominik Mierzejewski <dominik@greysector.net> - 1.4.4-1
+- update to 1.4.4 (#2131232)
+- drop obsolete patch
+
+* Thu Jul 21 2022 Fedora Release Engineering <releng@fedoraproject.org> - 1.4.2-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_37_Mass_Rebuild
+
 * Thu Jan 20 2022 Fedora Release Engineering <releng@fedoraproject.org> - 1.4.2-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_36_Mass_Rebuild