diff --git a/pango-1.44.7.tar.xz b/pango-1.44.7.tar.xz
deleted file mode 100644
index eec1d41fb1d6e20fa1d8bb3bbf1b31482f247c21..0000000000000000000000000000000000000000
Binary files a/pango-1.44.7.tar.xz and /dev/null differ
diff --git a/pango-1.45.3.tar.xz b/pango-1.45.3.tar.xz
new file mode 100644
index 0000000000000000000000000000000000000000..6d14ea6839ad112325f8984d3af913ec41b4dadc
Binary files /dev/null and b/pango-1.45.3.tar.xz differ
diff --git a/pango.spec b/pango.spec
index d686517de9b304cd5af867b29fbf9f58a592090d..15dd1eaebb54a590f84071cce11c68bf09292384 100644
--- a/pango.spec
+++ b/pango.spec
@@ -1,19 +1,18 @@
 Name:           pango
-Version:        1.44.7
+Version:        1.45.3
 Release:        1
 Summary:        A library for layout and rendering of text
 
 License:        LGPLv2+
 URL:            https://pango.gnome.org/
-Source0:        https://ftp.gnome.org/pub/GNOME/sources/pango/1.44/pango-%{version}.tar.xz
+Source0:        https://download.gnome.org//sources/pango/1.45/%{name}-%{version}.tar.xz
 
-Patch6000: 	replace-fallthrough-comments.patch
 Patch9000:	disable-layout-test.patch
 
-BuildRequires:  pkgconfig(cairo) >= 1.12.10 fontconfig >= 2.12.92 pkgconfig(freetype2) >= 2.1.5
+BuildRequires:  pkgconfig(cairo) >= 1.12.10 pkgconfig(fontconfig) >= 2.12.92 pkgconfig(freetype2) >= 2.1.5
 BuildRequires:  pkgconfig(fribidi) >= 1.0 pkgconfig(glib-2.0) >= 2.59.2 pkgconfig(harfbuzz) >= 2.0.0 
 BuildRequires:  pkgconfig(xft) >= 2.0.0 pkgconfig(libthai) >= 0.1.9 pkgconfig(gobject-introspection-1.0) 
-BuildRequires:  cairo-gobject-devel gtk-doc meson help2man gcc gcc-c++ 
+BuildRequires:  cairo-gobject-devel gtk-doc meson help2man gcc gcc-c++ harfbuzz-help 
 
 Requires:       cairo >= 1.12.10 fontconfig >= 2.12.92 freetype >= 2.1.5 fribidi >= 1.0
 Requires:       glib2 >= 2.59.2 harfbuzz >= 2.0.0 libXft >= 2.0.0 libthai >= 0.1.9
@@ -57,26 +56,32 @@ test -e %{buildroot}%{_libdir}/libpangoxft-1.0.so
 %defattr(-,root,root)
 %doc README.md
 %license COPYING
+%{_libdir}/libpango*-*.so.*
 %{_bindir}/%{name}-list
 %{_bindir}/%{name}-view
-%{_libdir}/libpango*-1.0.so.*
 %{_libdir}/girepository-1.0/Pango*-1.0.typelib
 
 %files devel
 %defattr(-,root,root)
-%{_includedir}/pango-1.0/pango/*.h
 %{_libdir}/*.so
-%{_libdir}/pkgconfig/pango*.pc
+%{_includedir}/*
+%{_libdir}/pkgconfig/*
 %{_datadir}/gir-1.0/*.gir
-%{_datadir}/installed-tests/pango/*.test
 %{_libexecdir}/installed-tests/pango/
+%{_datadir}/installed-tests
 
 %files help
 %defattr(-,root,root)
 %doc NEWS 
-%{_mandir}/man1/pango-view.1.gz
+%{_mandir}/man1/pango-view.1.*
 
 %changelog
+* Mon Jul 20 2020 wangye <wangye70@huawei.com> -1.45.3-1
+- Type:bugfix
+- Id:NA
+- SUG:NA
+- Mainline branch update to 1.44.7
+
 * Mon Jun 15 2020 hanhui <hanhui15@huawei.com> -1.44.7-1
 - Type:bugfix
 - Id:NA
diff --git a/replace-fallthrough-comments.patch b/replace-fallthrough-comments.patch
deleted file mode 100644
index 72798189443401d635f943055094cae3478cf3cb..0000000000000000000000000000000000000000
--- a/replace-fallthrough-comments.patch
+++ /dev/null
@@ -1,54 +0,0 @@
-diff -ruN pango-1.44.7.orig/pango/break.c pango-1.44.7/pango/break.c
---- pango-1.44.7.orig/pango/break.c	2020-04-07 13:28:18.558848703 +0200
-+++ pango-1.44.7/pango/break.c	2020-04-07 14:13:03.555033725 +0200
-@@ -405,7 +405,7 @@
-                 GB_type = GB_Prepend;
-                 break;
-               }
--	    /* fall through */
-+      __attribute__((fallthrough));
- 	  case G_UNICODE_CONTROL:
- 	  case G_UNICODE_LINE_SEPARATOR:
- 	  case G_UNICODE_PARAGRAPH_SEPARATOR:
-@@ -421,7 +421,7 @@
- 		GB_type = GB_ControlCRLF;
- 		break;
- 	      }
--	    /* fall through */
-+      __attribute__((fallthrough));
- 
- 	  case G_UNICODE_OTHER_LETTER:
- 	    if (makes_hangul_syllable)
-@@ -594,7 +594,7 @@
- 		case G_UNICODE_CONTROL:
- 		  if (wc != 0x000D && wc != 0x000A && wc != 0x000B && wc != 0x000C && wc != 0x0085)
- 		    break;
--		  /* fall through */
-+      __attribute__((fallthrough));
- 		case G_UNICODE_LINE_SEPARATOR:
- 		case G_UNICODE_PARAGRAPH_SEPARATOR:
- 		  WB_type = WB_NewlineCRLF; /* CR, LF, Newline */
-diff -ruN pango-1.44.7.orig/pango/pango-renderer.c pango-1.44.7/pango/pango-renderer.c
---- pango-1.44.7.orig/pango/pango-renderer.c	2020-04-07 13:28:18.568848677 +0200
-+++ pango-1.44.7/pango/pango-renderer.c	2020-04-07 14:12:53.076064830 +0200
-@@ -222,7 +222,7 @@
- 				     rect->y + 2 * rect->height,
- 				     rect->width,
- 				     rect->height);
--      /* Fall through */
-+      __attribute__((fallthrough));
-     case PANGO_UNDERLINE_SINGLE:
-     case PANGO_UNDERLINE_LOW:
-       pango_renderer_draw_rectangle (renderer,
-diff -ruN pango-1.44.7.orig/tests/testboundaries_ucd.c pango-1.44.7/tests/testboundaries_ucd.c
---- pango-1.44.7.orig/tests/testboundaries_ucd.c	2020-04-07 13:28:18.588848625 +0200
-+++ pango-1.44.7/tests/testboundaries_ucd.c	2020-04-07 14:16:44.621377237 +0200
-@@ -104,7 +104,7 @@
-         {
-         case 0x00f7: /* DIVISION SIGN: boundary here */
-           temp_attr.bits |= bits.bits;
--          /* fall through */
-+          __attribute__((fallthrough));
- 
-         case 0x00d7: /* MULTIPLICATION SIGN: no boundary here */
-           break;