diff --git a/.gitignore b/.gitignore
index 87db5ff..9e6dbec 100644
--- a/.gitignore
+++ b/.gitignore
@@ -44,3 +44,4 @@
 /chromium-65.0.3325.181-clean.tar.xz
 /chromium-66.0.3359.139-clean.tar.xz
 /chromium-66.0.3359.170-clean.tar.xz
+/chromium-66.0.3359.181-clean.tar.xz
diff --git a/chromium.spec b/chromium.spec
index 396593f..4250859 100644
--- a/chromium.spec
+++ b/chromium.spec
@@ -135,8 +135,8 @@ Name:		chromium%{chromium_channel}%{?freeworld:-freeworld}
 %else
 Name:		chromium%{chromium_channel}
 %endif
-Version:	%{majorversion}.0.3359.170
-Release:	2%{?dist}
+Version:	%{majorversion}.0.3359.181
+Release:	1%{?dist}
 Summary:	A WebKit (Blink) powered web browser
 Url:		http://www.chromium.org/Home
 License:	BSD and LGPLv2+ and ASL 2.0 and IJG and MIT and GPLv2+ and ISC and OpenSSL and (MPLv1.1 or GPLv2 or LGPLv2)
@@ -1628,6 +1628,9 @@ getent group chrome-remote-desktop >/dev/null || groupadd -r chrome-remote-deskt
 
 
 %changelog
+* Mon May 21 2018 Tom Callaway <spot@fedoraproject.org> 66.0.3359.181-1
+- update to 66.0.3359.181
+
 * Tue May 15 2018 Tom Callaway <spot@fedoraproject.org> 66.0.3359.170-2
 - only x86_64 i686 have swiftshader
 - fix gcc8 alignof issue on i686
diff --git a/sources b/sources
index da10506..75b07a7 100644
--- a/sources
+++ b/sources
@@ -1,3 +1,2 @@
 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
+SHA512 (chromium-66.0.3359.181-clean.tar.xz) = 713e0488dc6443e29a0914d801159d25200388ec4e9912afd2be3b54f5b64af4a6c8560423209c00d9ee4ad1802ce4e76db2a952a1f8643f3247469ffecf0ec4