diff --git a/.circleci/config.yml b/.circleci/config.yml
index f1ae868c1..f5a183a87 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -3,7 +3,7 @@ version: 2
 defaults: &defaults
   working_directory: ~/repo
   docker:
-    - image: iodide/pyodide-env:12
+    - image: pyodide/pyodide-env:13
   environment:
     - EMSDK_NUM_CORES: 4
       EMCC_CORES: 4
@@ -161,7 +161,7 @@ jobs:
       - run:
           name: test
           command: |
-            tools/pytest_wrapper.py src packages/micropip/ -v -k chrome -n 3
+            tools/pytest_wrapper.py src packages/micropip/ -v -k chrome
 
   test-packages-firefox:
     <<: *defaults
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 022935e23..de99df567 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -18,7 +18,7 @@ repos:
         # only check for unused imports, as the rest is done by black
         args: [--select=F401]
 -   repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v0.782
+    rev: v0.812
     hooks:
      -  id: mypy
         args:
diff --git a/Dockerfile b/Dockerfile
index 30f81428c..4cef902ee 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,7 +6,7 @@ RUN apt-get update \
                   bzip2 ccache clang-format-6.0 cmake f2c g++ gfortran git make \
                   patch pkg-config swig unzip wget xz-utils \
                   # testing packages: libgconf-2-4 is necessary for running chromium
-                  libgconf-2-4 chromium \
+                  libgconf-2-4 "chromium=89.*" \
   && rm -rf /var/lib/apt/lists/*
 
 RUN pip3 --no-cache-dir install \
@@ -15,7 +15,7 @@ RUN pip3 --no-cache-dir install \
   distlib \
   flake8 \
   hypothesis \
-  mypy \
+  "mypy==0.812" \
   pytest \
   pytest-cov \
   pytest-httpserver \
@@ -31,7 +31,7 @@ RUN wget -qO- https://ftp.mozilla.org/pub/firefox/releases/70.0.1/linux-x86_64/e
   && wget -qO- https://github.com/mozilla/geckodriver/releases/download/v0.26.0/geckodriver-v0.26.0-linux64.tar.gz | tar zxC /usr/local/bin/
 
 # Get recent version of chromedriver
-RUN wget --quiet https://chromedriver.storage.googleapis.com/2.41/chromedriver_linux64.zip \
+RUN wget --quiet https://chromedriver.storage.googleapis.com/89.0.4389.23/chromedriver_linux64.zip \
   && unzip chromedriver_linux64.zip \
   && mv $PWD/chromedriver /usr/local/bin \
   && rm -f chromedriver_linux64.zip
diff --git a/Dockerfile-prebuilt b/Dockerfile-prebuilt
index 9249f6cfd..74593abf9 100644
--- a/Dockerfile-prebuilt
+++ b/Dockerfile-prebuilt
@@ -1,6 +1,6 @@
 ARG VERSION
 
-FROM iodide/pyodide-env:${VERSION}
+FROM pyodide/pyodide-env:${VERSION}
 
 USER root
 
diff --git a/run_docker b/run_docker
index 96485ecd0..d33866d26 100755
--- a/run_docker
+++ b/run_docker
@@ -29,9 +29,9 @@ function error() {
 }
 
 
-PYODIDE_IMAGE_TAG="12"
+PYODIDE_IMAGE_TAG="13"
 PYODIDE_PREBUILT_IMAGE_TAG="0.17.0a2"
-DEFAULT_PYODIDE_DOCKER_IMAGE="iodide/pyodide-env:${PYODIDE_IMAGE_TAG}"
+DEFAULT_PYODIDE_DOCKER_IMAGE="pyodide/pyodide-env:${PYODIDE_IMAGE_TAG}"
 DEFAULT_PYODIDE_SYSTEM_PORT="8000"
 DOCKER_COMMAND="/bin/bash"
 
diff --git a/src/tests/python_tests.txt b/src/tests/python_tests.txt
index 8a0f38790..b0fe710f3 100644
--- a/src/tests/python_tests.txt
+++ b/src/tests/python_tests.txt
@@ -45,7 +45,7 @@ test__xxsubinterpreters
 test_abc
 test_abstract_numbers
 test_aifc   audioop
-test_argparse
+test_argparse  crash-chrome
 test_array
 test_asdl_parser
 test_ast