diff --git a/.gitignore b/.gitignore
index 78bacec..6451683 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@
 /qtdoc-opensource-src-5.4.2.tar.xz
 /qtdoc-opensource-src-5.5.0-rc.tar.xz
 /qtdoc-opensource-src-5.5.0.tar.xz
+/qtdoc-opensource-src-5.5.1-rc1.tar.xz
diff --git a/qt5-qtdoc.spec b/qt5-qtdoc.spec
index 0104d03..c11a4dd 100644
--- a/qt5-qtdoc.spec
+++ b/qt5-qtdoc.spec
@@ -1,12 +1,12 @@
 
 %global qt_module qtdoc
 
-#define prerelease rc
+%define prerelease rc1
 
 Summary: Main Qt5 Reference Documentation
 Name:    qt5-%{qt_module}
-Version: 5.5.0
-Release: 2%{?dist}
+Version: 5.5.1
+Release: 1%{?dist}
 
 License: GFDL
 Url:     http://www.qt.io
@@ -41,6 +41,9 @@ make install_docs INSTALL_ROOT=%{buildroot}
 
 
 %changelog
+* Tue Sep 29 2015 Helio Chissini de Castro <helio@kde.org> - 5.5.1-1
+- Update to Qt 5.5.1 RC1
+
 * Wed Jul 29 2015 Rex Dieter <rdieter@fedoraproject.org> 5.5.0-2
 - BR: qt5-qhelpgenerator
 
diff --git a/sources b/sources
index aafad1c..2427cce 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-fde2377a55f67edd8155db6c56b4d451  qtdoc-opensource-src-5.5.0.tar.xz
+9a5fbccbb105d1fcb30bb4f0dee5b093  qtdoc-opensource-src-5.5.1-rc1.tar.xz