diff --git a/.gitignore b/.gitignore
index 77a4292..dac61e7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 /kservice-5.48.0.tar.xz
 /kservice-5.49.0.tar.xz
 /kservice-5.50.0.tar.xz
+/kservice-5.51.0.tar.xz
diff --git a/kf5-kservice.spec b/kf5-kservice.spec
index 44ea569..82716b2 100644
--- a/kf5-kservice.spec
+++ b/kf5-kservice.spec
@@ -2,7 +2,7 @@
 
 Name:    kf5-%{framework}
 Summary: KDE Frameworks 5 Tier 3 solution for advanced plugin and service introspection
-Version: 5.50.0
+Version: 5.51.0
 Release: 1%{?dist}
 
 # mixture of LGPLv2 and LGPLv2+ (mostly the latter)
@@ -31,9 +31,6 @@ Patch100:  kservice-5.15.0-xdg-menu.patch
 # hide that by default, make it qCDebug instead (of qCWarning)
 Patch101:  kservice-5.17.0-vfolder_spam.patch
 
-# Workaround flex bug (https://bugzilla.redhat.com/show_bug.cgi?id=1364943)
-Patch102:  kservice-5.36-fix-build-with-flex-2.6.0.patch
-
 BuildRequires:  extra-cmake-modules >= %{majmin}
 BuildRequires:  kf5-kconfig-devel >= %{majmin}
 BuildRequires:  kf5-kcoreaddons-devel >= %{majmin}
@@ -112,6 +109,9 @@ mkdir -p %{buildroot}%{_kf5_datadir}/kservicetypes5
 
 
 %changelog
+* Wed Oct 10 2018 Rex Dieter <rdieter@fedoraproject.org> - 5.51.0-1
+- 5.51.0
+
 * Tue Sep 04 2018 Rex Dieter <rdieter@fedoraproject.org> - 5.50.0-1
 - 5.50.0
 
diff --git a/kservice-5.36-fix-build-with-flex-2.6.0.patch b/kservice-5.36-fix-build-with-flex-2.6.0.patch
deleted file mode 100644
index 3afee18..0000000
--- a/kservice-5.36-fix-build-with-flex-2.6.0.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff -up kservice-5.36.0/CMakeLists.txt.flex kservice-5.36.0/CMakeLists.txt
---- kservice-5.36.0/CMakeLists.txt.flex	2017-07-02 03:10:31.000000000 -0500
-+++ kservice-5.36.0/CMakeLists.txt	2017-07-03 14:06:30.065476955 -0500
-@@ -64,6 +64,8 @@ set_package_properties(BISON PROPERTIES
-     PURPOSE "Required for the Trader parser"
- )
- 
-+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99")
-+
- add_definitions(-DTRANSLATION_DOMAIN=\"kservice5\")
- if (IS_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/po")
-     ki18n_install(po)
diff --git a/sources b/sources
index df7e51f..3e27e5a 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (kservice-5.50.0.tar.xz) = d239647335f0c72e1c76f36f4f23dfdd4614467b1f95d75bffc3ffd11c2bcf307dbbbc7f67c0197030a1c27875bf256a751721204f06769d9fdc3f1e49172e87
+SHA512 (kservice-5.51.0.tar.xz) = 832c189b8fbf9ffca863032dcea513c14fb4823f6706675b8b939b9c6848c383b9f4ace0c7bc6211a9c5398026045fde3f62e38926e934dc6afeeb762fed56c7