diff --git a/.gitignore b/.gitignore
index f419b63..87db5ff 100644
--- a/.gitignore
+++ b/.gitignore
@@ -43,3 +43,4 @@
 /chromium-65.0.3325.162-clean.tar.xz
 /chromium-65.0.3325.181-clean.tar.xz
 /chromium-66.0.3359.139-clean.tar.xz
+/chromium-66.0.3359.170-clean.tar.xz
diff --git a/chromium.spec b/chromium.spec
index a045592..ca4b2e9 100644
--- a/chromium.spec
+++ b/chromium.spec
@@ -135,7 +135,7 @@ Name:		chromium%{chromium_channel}%{?freeworld:-freeworld}
 %else
 Name:		chromium%{chromium_channel}
 %endif
-Version:	%{majorversion}.0.3359.139
+Version:	%{majorversion}.0.3359.170
 Release:	1%{?dist}
 Summary:	A WebKit (Blink) powered web browser
 Url:		http://www.chromium.org/Home
@@ -1250,6 +1250,7 @@ cp -a nacl_helper* *.nexe pnacl tls_edit %{buildroot}%{chromium_path}
 chmod -x %{buildroot}%{chromium_path}/nacl_helper_bootstrap* *.nexe
 %endif
 cp -a protoc pyproto %{buildroot}%{chromium_path}
+cp -a swiftshader %{buildroot}%{chromium_path}
 cp -a chrome %{buildroot}%{chromium_path}/%{chromium_browser_channel}
 cp -a chrome_sandbox %{buildroot}%{chromium_path}/chrome-sandbox
 cp -a ../../chrome/app/resources/manpage.1.in %{buildroot}%{_mandir}/man1/%{chromium_browser_channel}.1
@@ -1617,6 +1618,10 @@ getent group chrome-remote-desktop >/dev/null || groupadd -r chrome-remote-deskt
 
 
 %changelog
+* Mon May 14 2018 Tom Callaway <spot@fedoraproject.org> 66.0.3359.170-1
+- update to 66.0.3359.170
+- include swiftshader files
+
 * Tue May  1 2018 Tom Callaway <spot@fedoraproject.org> 66.0.3359.139-1
 - update to 66.0.3359.139
 
diff --git a/sources b/sources
index 7aaebf2..da10506 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,3 @@
 SHA512 (depot_tools.git-master.tar.gz) = d3d6a1873b2b0296a8cd99e0d8d2e629a17b1808934b4972556168f8b4ccea60577ebaeab4445baf15afb1b04080808db59a832a5b61d247bd48da14fa6acf03
 SHA512 (chromium-66.0.3359.139-clean.tar.xz) = 580ec80e3300d356e83407e3d663d0a1f4d5963c6ef6baa7870883bfa3340c3684dfa7bf3cc25e1ab95afb4084b15f7cc08ce555cbb5298422fa4ae790d06735
+SHA512 (chromium-66.0.3359.170-clean.tar.xz) = de4115e61db2a4a452518c5766d0b133a7c75e0721f217fc5d1e53eb8f7d8045842b083295aa166e2963fe9525a8b7af3549ec96a2cc06e3c2b5206d86efd804