diff --git a/.github/workflows/devtools.yml b/.github/workflows/devtools.yml
index 73739fa17ab3..eaff36dffb47 100644
--- a/.github/workflows/devtools.yml
+++ b/.github/workflows/devtools.yml
@@ -105,7 +105,7 @@ jobs:
       run: bash $GITHUB_WORKSPACE/lighthouse/lighthouse-core/test/chromium-web-tests/download-content-shell.sh
 
     - name: Install python deps
-      run: pip install six requests
+      run: python3 -m pip install six requests
 
     - name: Run Web Tests
       run: bash $GITHUB_WORKSPACE/lighthouse/lighthouse-core/test/chromium-web-tests/run-web-tests.sh
diff --git a/lighthouse-core/test/chromium-web-tests/README.md b/lighthouse-core/test/chromium-web-tests/README.md
index 6b83e5b564db..a131bcd86e82 100644
--- a/lighthouse-core/test/chromium-web-tests/README.md
+++ b/lighthouse-core/test/chromium-web-tests/README.md
@@ -21,15 +21,12 @@ SKIP_DOWNLOADS=1 yarn test-devtools
 ### Prerequistes
 
 <details>
-  <summary> Install `requests`</summary>
-
-  Ensure you have `requests` module available globally on your python 2.7 install. New Macs do not come with pip for python 2.7 which is deprecated, so you might have to install that too.
+  <summary>Install python dependencies</summary>
 
+  Ensure you have these modules available globally on your python 3.x install:
 
   ```sh
-  curl https://bootstrap.pypa.io/pip/2.7/get-pip.py -o get-pip.py
-  python get-pip.py
-  pip -m pip install requests
+  python3 -m pip install requests six
   ```
 
 </details>
@@ -108,7 +105,7 @@ yarn run-devtools http://example.com
 
 #### How to modify blink-tools.patch?
 
-Simply make your changes in `.tmp/chromium-web-tests/blink_tools`, and run: `git -C .tmp/chromium-web-tests/blink_tools diff > lighthouse-core/test/chromium-web-tests/blink-tools.patch`
+Simply make your changes in `.tmp/chromium-web-tests/blink_tools/latest`, and run: `git -C .tmp/chromium-web-tests/blink_tools/latest diff > lighthouse-core/test/chromium-web-tests/blink-tools.patch`
 
 #### How does the python module `typ` get added to python sys path?
 
diff --git a/lighthouse-core/test/chromium-web-tests/blink-tools.patch b/lighthouse-core/test/chromium-web-tests/blink-tools.patch
index a793b1c082cf..5ea0ac348771 100644
--- a/lighthouse-core/test/chromium-web-tests/blink-tools.patch
+++ b/lighthouse-core/test/chromium-web-tests/blink-tools.patch
@@ -1,8 +1,8 @@
 diff --git a/third_party/blink/tools/blinkpy/web_tests/controllers/manager.py b/third_party/blink/tools/blinkpy/web_tests/controllers/manager.py
-index 693a95d..7890234 100644
+index 4323c8c..23ae146 100644
 --- a/third_party/blink/tools/blinkpy/web_tests/controllers/manager.py
 +++ b/third_party/blink/tools/blinkpy/web_tests/controllers/manager.py
-@@ -452,9 +452,9 @@ class Manager(object):
+@@ -485,9 +485,9 @@ class Manager(object):
          if (self._port.requires_http_server()
                  or any(self._is_http_test(test) for test in tests_to_run)):
              self._printer.write_update('Starting HTTP server ...')
@@ -16,10 +16,21 @@ index 693a95d..7890234 100644
  
          if any(self._is_websocket_test(test) for test in tests_to_run):
 diff --git a/third_party/blink/tools/blinkpy/web_tests/port/base.py b/third_party/blink/tools/blinkpy/web_tests/port/base.py
-index 6f5b188..0ae630e 100644
+index 8f5ff1a..b7f0ae5 100644
 --- a/third_party/blink/tools/blinkpy/web_tests/port/base.py
 +++ b/third_party/blink/tools/blinkpy/web_tests/port/base.py
-@@ -495,15 +495,15 @@ class Port(object):
+@@ -63,8 +63,8 @@ from blinkpy.web_tests.port.factory import PortFactory
+ from blinkpy.web_tests.servers import apache_http
+ from blinkpy.web_tests.servers import pywebsocket
+ from blinkpy.web_tests.servers import wptserve
+-from blinkpy.web_tests.skia_gold import blink_skia_gold_properties as sgp
+-from blinkpy.web_tests.skia_gold import blink_skia_gold_session_manager as sgsm
++# from blinkpy.web_tests.skia_gold import blink_skia_gold_properties as sgp
++# from blinkpy.web_tests.skia_gold import blink_skia_gold_session_manager as sgsm
+ 
+ _log = logging.getLogger(__name__)
+ 
+@@ -541,15 +541,15 @@ class Port(object):
                  self.get_option('configuration')):
              return exit_codes.UNEXPECTED_ERROR_EXIT_STATUS
  
diff --git a/lighthouse-core/test/chromium-web-tests/download-blink-tools.sh b/lighthouse-core/test/chromium-web-tests/download-blink-tools.sh
index d411ebfb0566..6271c2ecca25 100644
--- a/lighthouse-core/test/chromium-web-tests/download-blink-tools.sh
+++ b/lighthouse-core/test/chromium-web-tests/download-blink-tools.sh
@@ -13,9 +13,9 @@ set -euo pipefail
 SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
 # https://chromium.googlesource.com/chromium/src/
-commit_chromium="4ffbceb9e46813c0041c27d52fbcd180348ae073"
+commit_chromium="e1c3b88f73fcbff831485c0ca37f877bd22b7a02"
 # https://chromium.googlesource.com/catapult/
-commit_catapult="370c3d98a6db53222e9f36a4491a3757bb93e61a"
+commit_catapult="c2b4e773a8d77586ddea18b1962a3e02d19e682f"
 
 VERSIONED_DIR="$BLINK_TOOLS_PATH/$commit_chromium$commit_catapult"
 
diff --git a/lighthouse-core/test/chromium-web-tests/web-test-server.sh b/lighthouse-core/test/chromium-web-tests/web-test-server.sh
index c0e5ef340e83..73042a34b798 100644
--- a/lighthouse-core/test/chromium-web-tests/web-test-server.sh
+++ b/lighthouse-core/test/chromium-web-tests/web-test-server.sh
@@ -8,6 +8,11 @@
 
 set -euo pipefail
 
+if ! type -P python3; then
+  echo "python3 could not be found"
+  exit 1
+fi
+
 # Get newest folder
 latest_content_shell_dir=$(ls -t "$LH_ROOT/.tmp/chromium-web-tests/content-shells/" | head -n1)
 export latest_content_shell="$LH_ROOT/.tmp/chromium-web-tests/content-shells/$latest_content_shell_dir"
@@ -49,7 +54,7 @@ set +e
 # Print the python command.
 set -x
 
-python \
+python3 \
   "$BLINK_TOOLS_PATH/latest/third_party/blink/tools/run_web_tests.py" \
   --layout-tests-directory="$DEVTOOLS_PATH/test/webtests" \
   --build-directory="$latest_content_shell/out" \