diff --git a/ChangeLog b/ChangeLog
index 9aa356bccd46..b8dbf23eb1a5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2017-10-18  Carlos Garcia Campos  <cgarcia@igalia.com>
+
+        Unreviewed. Update OptionsGTK.cmake and NEWS for 2.18.1 release.
+
+        * Source/cmake/OptionsGTK.cmake: Bump version numbers.
+
 2017-08-30  Carlos Alberto Lopez Perez  <clopez@igalia.com>
 
         [WPE] Enable MEMORY_SAMPLER
diff --git a/Source/WebKit/ChangeLog b/Source/WebKit/ChangeLog
index 3c1e20430e02..f9be31c6f329 100644
--- a/Source/WebKit/ChangeLog
+++ b/Source/WebKit/ChangeLog
@@ -1,3 +1,9 @@
+2017-10-18  Carlos Garcia Campos  <cgarcia@igalia.com>
+
+        Unreviewed. Update OptionsGTK.cmake and NEWS for 2.18.1 release.
+
+        * gtk/NEWS: Add release notes for 2.18.1.
+
 2017-08-30  Carlos Alberto Lopez Perez  <clopez@igalia.com>
 
         [WPE] Enable MEMORY_SAMPLER
diff --git a/Source/WebKit/gtk/NEWS b/Source/WebKit/gtk/NEWS
index 222a8103070c..588959577019 100644
--- a/Source/WebKit/gtk/NEWS
+++ b/Source/WebKit/gtk/NEWS
@@ -1,3 +1,20 @@
+==================
+WebKitGTK+  2.18.1
+==================
+
+What's new in WebKitGTK+ 2.18.1?
+
+  - Improve performance of GIF animations.
+  - Fix garbled display in GMail.
+  - Fix rendering of several material design icons when using the web font.
+  - Fix flickering when resizing the window in Wayland.
+  - Prevent default kerberos authentication credentials from being used in ephemeral sessions.
+  - Fix a crash when webkit_web_resource_get_data() is cancelled.
+  - Correctly handle touchmove and touchend events in WebKitWebView.
+  - Fix the build with enchant 2.1.1.
+  - Fix the build in HPPA and Alpha.
+  - Fix several crashes and rendering issues.
+
 ==================
 WebKitGTK+  2.18.0
 ==================
diff --git a/Source/cmake/OptionsGTK.cmake b/Source/cmake/OptionsGTK.cmake
index c8570b7e956a..8ad6bf0441b0 100644
--- a/Source/cmake/OptionsGTK.cmake
+++ b/Source/cmake/OptionsGTK.cmake
@@ -2,7 +2,7 @@ include(GNUInstallDirs)
 
 set(PROJECT_VERSION_MAJOR 2)
 set(PROJECT_VERSION_MINOR 18)
-set(PROJECT_VERSION_MICRO 0)
+set(PROJECT_VERSION_MICRO 1)
 set(PROJECT_VERSION ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_MICRO})
 set(WEBKITGTK_API_VERSION 4.0)
 
@@ -14,8 +14,8 @@ macro(CALCULATE_LIBRARY_VERSIONS_FROM_LIBTOOL_TRIPLE library_name current revisi
     set(${library_name}_VERSION_MICRO ${revision})
     set(${library_name}_VERSION ${${library_name}_VERSION_MAJOR}.${age}.${revision})
 endmacro()
-CALCULATE_LIBRARY_VERSIONS_FROM_LIBTOOL_TRIPLE(WEBKIT2 61 3 24)
-CALCULATE_LIBRARY_VERSIONS_FROM_LIBTOOL_TRIPLE(JAVASCRIPTCORE 24 9 6)
+CALCULATE_LIBRARY_VERSIONS_FROM_LIBTOOL_TRIPLE(WEBKIT2 61 4 24)
+CALCULATE_LIBRARY_VERSIONS_FROM_LIBTOOL_TRIPLE(JAVASCRIPTCORE 24 10 6)
 
 # These are shared variables, but we special case their definition so that we can use the
 # CMAKE_INSTALL_* variables that are populated by the GNUInstallDirs macro.