diff --git a/.gitignore b/.gitignore
index 9c8d789..ea84dac 100644
--- a/.gitignore
+++ b/.gitignore
@@ -59,3 +59,4 @@ mercurial-1.6.2.tar.gz
 /mercurial-4.2.1.tar.gz
 /mercurial-4.2.3.tar.gz
 /mercurial-4.4.2.tar.gz
+/mercurial-4.5.3.tar.gz
diff --git a/mercurial.spec b/mercurial.spec
index 7dc9b15..4ac786d 100644
--- a/mercurial.spec
+++ b/mercurial.spec
@@ -2,8 +2,8 @@
 
 Summary: Mercurial -- a distributed SCM
 Name: mercurial
-Version: 4.4.2
-Release: 4%{?dist}
+Version: 4.5.3
+Release: 1%{?dist}
 
 # Release: 1.rc1%{?dist}
 
@@ -128,7 +128,6 @@ grep -v locale %{name}-base.files > %{name}-base-filtered.files
 %doc CONTRIBUTORS COPYING doc/README doc/hg*.txt doc/hg*.html *.cgi contrib/*.fcgi contrib/*.wsgi
 %doc %attr(644,root,root) %{_mandir}/man?/hg*.gz
 %doc %attr(644,root,root) contrib/*.svg
-%{_datadir}/zsh/site-functions/_mercurial
 %{_bindir}/hg-ssh
 %{_datadir}/bash-completion/
 %dir %{_datadir}/zsh/
@@ -151,6 +150,11 @@ grep -v locale %{name}-base.files > %{name}-base-filtered.files
 ##cd tests && %{__python} run-tests.py
 
 %changelog
+* Wed Apr 25 2018 Pavel Cahyna <pcahyna@redhat.com> - 4.5.3-1
+- Update to 4.5.3
+- Resolves: CVE-2018-1000132
+- Remove an unneeded file entry for zsh/site-functions/_mercurial
+
 * Fri Feb 09 2018 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 4.4.2-4
 - Escape macros in %%changelog
 
diff --git a/sources b/sources
index e158c26..5332e34 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (mercurial-4.4.2.tar.gz) = 3d1d103689eac4f50cc1005be44144b37d75ebfac3ff3b4fc90d6f41fbee46e107a168d04f2c366ce7cca2733ea4e5b5127df462af8e253f61a72f8938833993
+SHA512 (mercurial-4.5.3.tar.gz) = 9c23ffefb0a194b5a88ee783186347c21e7d973524ba40119439702953b35b01ad6fbc32ce09ae169f1020963e92312a39321b1da3ffe06db1d44158761abbec