diff --git a/src/version/cef_version_win.h b/src/version/cef_version_win.h
index 526e4630..50e9b4ef 100644
--- a/src/version/cef_version_win.h
+++ b/src/version/cef_version_win.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2017 Marshall A. Greenblatt. All rights reserved.
+// Copyright (c) 2018 Marshall A. Greenblatt. All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
@@ -35,16 +35,16 @@
 #ifndef CEF_INCLUDE_CEF_VERSION_H_
 #define CEF_INCLUDE_CEF_VERSION_H_
 
-#define CEF_VERSION "3.3029.1604.g364cd86"
+#define CEF_VERSION "3.3359.1774.gd49d25f"
 #define CEF_VERSION_MAJOR 3
-#define CEF_COMMIT_NUMBER 1604
-#define CEF_COMMIT_HASH "364cd863b14617f21e6bf8fd3ca3faea01e2ef38"
-#define COPYRIGHT_YEAR 2017
+#define CEF_COMMIT_NUMBER 1774
+#define CEF_COMMIT_HASH "d49d25f881b68f418e243e12801cbbb7caebb563"
+#define COPYRIGHT_YEAR 2018
 
-#define CHROME_VERSION_MAJOR 58
+#define CHROME_VERSION_MAJOR 66
 #define CHROME_VERSION_MINOR 0
-#define CHROME_VERSION_BUILD 3029
-#define CHROME_VERSION_PATCH 81
+#define CHROME_VERSION_BUILD 3359
+#define CHROME_VERSION_PATCH 181
 
 #define DO_MAKE_STRING(p) #p
 #define MAKE_STRING(p) DO_MAKE_STRING(p)
@@ -63,13 +63,13 @@ extern "C" {
 // universal hash value will change if any platform is affected whereas the
 // platform hash values will change only if that particular platform is
 // affected.
-#define CEF_API_HASH_UNIVERSAL "f0e835273a00acd02a699af272fc8f6ff9c5645c"
+#define CEF_API_HASH_UNIVERSAL "84263345b0b1143139aba560e5e5ed16fb6a9628"
 #if defined(OS_WIN)
-#define CEF_API_HASH_PLATFORM "3cf7ac2b9aa61adfb9e5decdf0d32fbf78813355"
+#define CEF_API_HASH_PLATFORM "cf092ef692a2ff18b0fc732b58bde9b8b8655fcc"
 #elif defined(OS_MACOSX)
-#define CEF_API_HASH_PLATFORM "f1d2ed00ab93e03a215fd787e6da9127e2949fd8"
+#define CEF_API_HASH_PLATFORM "34f636bde2f02cb43c10061f384af4fc51c26e1f"
 #elif defined(OS_LINUX)
-#define CEF_API_HASH_PLATFORM "698e69c4297cc63b9893558a8591e7bd7aeeb0d4"
+#define CEF_API_HASH_PLATFORM "6b57a640612f8d459042917ad2568b1526a70af4"
 #endif
 
 // Returns CEF version information for the libcef library. The |entry|
diff --git a/tools/automate.py b/tools/automate.py
index da667574..a618cee5 100644
--- a/tools/automate.py
+++ b/tools/automate.py
@@ -64,10 +64,10 @@
     --gyp-generators=<gen>   Set GYP_GENERATORS [default: ninja].
     --gyp-msvs-version=<v>   Set GYP_MSVS_VERSION.
     --use-system-freetype    Use system Freetype library on Linux (Issue #402)
-    --no-depot-tools-update  Do not update depot_tools/ directory. When building
-                             old unsupported versions of Chromium you want to
-                             manually checkout an old version of depot tools
-                             from the time of the release.
+    --no-depot-tools-update  Do not update depot_tools/ directory. When
+                             building old unsupported versions of Chromium
+                             you want to manually checkout an old version
+                             of depot tools from the time of the release.
 
 """
 
@@ -574,11 +574,15 @@ def fix_cmake_variables_for_MD_library(undo=False, try_undo=False):
     # This replacements must be unique for the undo operation
     # to be reliable.
 
-    mt_find = r"/MT "
-    mt_replace = r"/MD /wd4275 "
+    mt_find = r'CEF_RUNTIME_LIBRARY_FLAG "/MT"'
+    mt_replace = r'CEF_RUNTIME_LIBRARY_FLAG "/MD"'
 
-    mtd_find = r"/MTd "
-    mtd_replace = r"/MDd /wd4275 "
+    wd4275_find = ('/wd4244       '
+                   '# Ignore "conversion possible loss of data" warning')
+    wd4275_replace = ('/wd4244       '
+                      '# Ignore "conversion possible loss of data" warning'
+                      '\r\n'
+                      '    /wd4275 # Ignore "non dll-interface class"')
 
     cmake_variables = os.path.join(Options.cef_binary, "cmake",
                                    "cef_variables.cmake")
@@ -587,7 +591,7 @@ def fix_cmake_variables_for_MD_library(undo=False, try_undo=False):
 
     if try_undo:
         matches1 = re.findall(re.escape(mt_replace), contents)
-        matches2 = re.findall(re.escape(mtd_replace), contents)
+        matches2 = re.findall(re.escape(wd4275_replace), contents)
         if len(matches1) or len(matches2):
             undo = True
         else:
@@ -596,15 +600,16 @@ def fix_cmake_variables_for_MD_library(undo=False, try_undo=False):
     if undo:
         (contents, count) = re.subn(re.escape(mt_replace), mt_find,
                                     contents)
-        assert count == 2
-        (contents, count) = re.subn(re.escape(mtd_replace), mtd_find,
+        assert count == 1
+        (contents, count) = re.subn(re.escape(wd4275_replace), wd4275_find,
                                     contents)
         assert count == 1
     else:
         (contents, count) = re.subn(re.escape(mt_find), mt_replace,
                                     contents)
-        assert count == 2
-        (contents, count) = re.subn(re.escape(mtd_find), mtd_replace,
+        print(re.escape(mt_find))
+        assert count == 1
+        (contents, count) = re.subn(re.escape(wd4275_find), wd4275_replace,
                                     contents)
         assert count == 1