diff --git a/package.json b/package.json
index b31efa84e2..d4a0eb6425 100644
--- a/package.json
+++ b/package.json
@@ -76,6 +76,7 @@
     "webpack4-bundle-tracker": "^0.0.1-beta",
     "winchan": "^0.2.1",
     "xdate": "^0.8.2",
+    "xvfb": "^0.4.0",
     "zxcvbn": "^4.4.2"
   },
   "devDependencies": {
diff --git a/tools/lib/provision.py b/tools/lib/provision.py
index 59ada7827b..721e31a055 100755
--- a/tools/lib/provision.py
+++ b/tools/lib/provision.py
@@ -141,6 +141,7 @@ COMMON_DEPENDENCIES = [
     "fonts-freefont-ttf",
     "libappindicator1",
     "xdg-utils",
+    "xvfb",
     # Puppeteer dependencies end here.
 ]
 
diff --git a/version.py b/version.py
index be167bc3fa..c9f7f3f326 100644
--- a/version.py
+++ b/version.py
@@ -44,4 +44,4 @@ API_FEATURE_LEVEL = 32
 #   historical commits sharing the same major version, in which case a
 #   minor version bump suffices.
 
-PROVISION_VERSION = '100.0'
+PROVISION_VERSION = '100.1'
diff --git a/yarn.lock b/yarn.lock
index cfe957f86f..e2f051b430 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7961,7 +7961,7 @@ namespace-emitter@^2.0.1:
   resolved "https://registry.yarnpkg.com/namespace-emitter/-/namespace-emitter-2.0.1.tgz#978d51361c61313b4e6b8cf6f3853d08dfa2b17c"
   integrity sha512-N/sMKHniSDJBjfrkbS/tpkPj4RAbvW3mr8UAzvlMHyun93XEm83IAvhWtJVHo+RHn/oO8Job5YN4b+wRjSVp5g==
 
-nan@^2.10.0, nan@^2.12.1:
+nan@^2.10.0, nan@^2.12.1, nan@^2.13.2:
   version "2.14.1"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.1.tgz#d7be34dfa3105b91494c3147089315eff8874b01"
   integrity sha512-isWHgVjnFjh2x2yuJ/tj3JbwoHu3UC2dX5G/88Cm24yB6YopVgxvBObDY7n5xW6ExmFhJpSEQqFPvq9zaXc8Jw==
@@ -10835,6 +10835,13 @@ slash@^3.0.0:
   resolved "https://registry.yarnpkg.com/slash/-/slash-3.0.0.tgz#6539be870c165adbd5240220dbe361f1bc4d4634"
   integrity sha512-g9Q1haeby36OSStwb4ntCGGGaKsaVSjQ68fBxoQcutl5fS1vuY18H3wSt3jFyFtrkx+Kz0V1G85A4MyAdDMi2Q==
 
+sleep@6.1.0:
+  version "6.1.0"
+  resolved "https://registry.yarnpkg.com/sleep/-/sleep-6.1.0.tgz#5507b520556a82ffb983d39123c5459470fa2a9e"
+  integrity sha512-Z1x4JjJxsru75Tqn8F4tnOFeEu3HjtITTsumYUiuz54sGKdISgLCek9AUlXlVVrkhltRFhNUsJDJE76SFHTDIQ==
+  dependencies:
+    nan "^2.13.2"
+
 slice-ansi@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-2.1.0.tgz#cacd7693461a637a5788d92a7dd4fba068e81636"
@@ -13031,6 +13038,13 @@ xtend@^2.1.2:
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-2.2.0.tgz#eef6b1f198c1c8deafad8b1765a04dad4a01c5a9"
   integrity sha1-7vax8ZjByN6vrYsXZaBNrUoBxak=
 
+xvfb@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/xvfb/-/xvfb-0.4.0.tgz#52c4ddb991b7c5ae9d175d35452718b734781e85"
+  integrity sha512-g55AbjcBL4Bztfn7kiUrR0ne8mMUsFODDJ+HFGf5OuHJqKKccpExX2Qgn7VF2eImw1eoh6+riXHser1J4agrFA==
+  optionalDependencies:
+    sleep "6.1.0"
+
 y18n@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.0.tgz#95ef94f85ecc81d007c264e190a120f0a3c8566b"