diff --git a/test/README.md b/test/README.md
index 7d95db76..dea0149f 100644
--- a/test/README.md
+++ b/test/README.md
@@ -7,7 +7,8 @@ Running tests
 
 ./install.sh
 
-python3 -m virtualenv venv
+python3 -m venv venv
+source ./venv/bin/activate
 pip install -r requirements.txt
 
 pytest -v test.py
diff --git a/test/after/cssbeautify.css b/test/after/cssbeautify.css
index b4197b16..c7a2c2e2 100644
--- a/test/after/cssbeautify.css
+++ b/test/after/cssbeautify.css
@@ -1,3 +1,3 @@
 .body {
-  color: red;
+  color: green;
 }
diff --git a/test/after/prettydiff.css b/test/after/prettydiff.css
index f44498d3..295f92d4 100644
--- a/test/after/prettydiff.css
+++ b/test/after/prettydiff.css
@@ -1,4 +1,4 @@
 .body {
-  color: red;
+  color: blue;
 }
 
diff --git a/test/before/cssbeautify.css b/test/before/cssbeautify.css
index 68748307..8fdcc720 100644
--- a/test/before/cssbeautify.css
+++ b/test/before/cssbeautify.css
@@ -1,3 +1,3 @@
 .body {
-color: red;
+color: green;
 }
diff --git a/test/before/prettydiff.css b/test/before/prettydiff.css
index 68748307..5b840651 100644
--- a/test/before/prettydiff.css
+++ b/test/before/prettydiff.css
@@ -1,3 +1,3 @@
 .body {
-color: red;
+color: blue;
 }
diff --git a/test/install.sh b/test/install.sh
index 9e4083eb..6ac8025f 100755
--- a/test/install.sh
+++ b/test/install.sh
@@ -1,13 +1,5 @@
 #!/usr/bin/env bash
 
-if [[ $OSTYPE == darwin* ]]; then
-    OS='mac'
-elif [[ $OSTYPE == linux-gnu* ]]; then
-    OS='linux'
-else
-    OS='unknown'
-fi
-
 # Formatters
 npm install -g csscomb@3.1.7
 npm install -g prettydiff@99.0.1
@@ -21,22 +13,6 @@ if ! hash vint 2>/dev/null; then
     pip install vim-vint
 fi
 
-# Make sure neovim is installed
-if ! hash nvim 2>/dev/null; then
-    echo "installing neovim"
-    if [[ $OS == 'linux' ]]; then
-        echo "installing nvim on linux"
-        sudo add-apt-repository -y ppa:neovim-ppa/unstable
-        sudo apt-get update
-        sudo apt-get install -y neovim
-    elif [[ $OS == 'mac' ]]; then
-        echo "install nvim on mac"
-        brew install neovim
-    fi
-else
-    echo "neovim already installed"
-fi
-
 # Vader
 if [ ! -d "$HOME/.vim/plugged/vader.vim" ]; then
     git clone https://github.com/junegunn/vader.vim.git ~/.vim/plugged/vader.vim
diff --git a/test/test.py b/test/test.py
index f5c42eeb..47141fd3 100644
--- a/test/test.py
+++ b/test/test.py
@@ -2,11 +2,12 @@
 
 import subprocess
 
-from os import listdir
+import os
 from shutil import copyfile
 
+
 def run_vim_cmd(cmd, filename=''):
-    cmd = f'nvim -u vimrc -c "set verbose=1 | {cmd} | wq " --headless {filename}'
+    cmd = f'vim -u vimrc -c "set verbose=1 | {cmd} | wq "  {filename}'
     return run_cmd(cmd)
 
 
@@ -23,10 +24,18 @@ def test_formatters():
     '''
     run formatters on entire buffer
     '''
-    for filename in listdir('before'):
+
+    files = os.listdir('before')
+
+    ignored = set(['.mypy_cache'])
+
+    filtered_files = (f for f in files if f not in ignored)
+
+    for filename in filtered_files:
+        assert filename != '.mypy_cache'
         output_file = '/tmp/neoformat_' + filename
         formatter = filename.split('.')[0]
-        cmd = f'nvim -u vimrc -c "set verbose=1 | Neoformat {formatter} | w! {output_file} | q! " --headless ./before/{filename}'
+        cmd = f'vim -u vimrc -c "set verbose=1 | Neoformat {formatter} | w! {output_file} | q! "  ./before/{filename}'
         run_cmd(cmd)
         before = readlines(output_file)
         after = readlines('./after/' + filename)
@@ -45,7 +54,7 @@ def test_visual_selection_multi_filetype():
         (filetype, start_line, end_line) = test
         print(start_line)
         vim_cmd = f'{start_line},{end_line}Neoformat! {filetype}'
-        cmd = f'nvim -u vimrc -c "set verbose=1 | {vim_cmd} | wq " --headless {output_file}'
+        cmd = f'vim -u vimrc -c "set verbose=1 | {vim_cmd} | wq "  {output_file}'
         run_cmd(cmd)
 
     before = readlines(output_file)
@@ -59,10 +68,10 @@ def test_visual_selection_with_filetype_and_formatter():
     '''
     dir_before = 'visual_before/'
     dir_after = 'visual_after/'
-    for filename in listdir(dir_before):
+    for filename in os.listdir(dir_before):
         (filetype, formatter, start_line, end_line) = filename.split('_')
         output_file = '/tmp/neoformat_' + filename
-        cmd = f'nvim -u vimrc -c "set verbose=1 | {start_line},{end_line}Neoformat! {filetype} {formatter} | w! {output_file} | q! " --headless {dir_before + filename}'
+        cmd = f'vim -u vimrc -c "set verbose=1 | {start_line},{end_line}Neoformat! {filetype} {formatter} | w! {output_file} | q! "  {dir_before + filename}'
         run_cmd(cmd)
         before = readlines(output_file)
         after = readlines(dir_after + filename)
@@ -81,7 +90,7 @@ def test_formatprg_with_neoformat():
     let &formatprg = 'css-beautify -s 6 -n'
     let g:neoformat_try_formatprg = 1
     '''
-    cmd = f'nvim -u vimrc -c "set verbose=1 | {viml} | Neoformat | w! {output_file} | q! " --headless {dir_before + filename}'
+    cmd = f'vim -u vimrc -c "set verbose=1 | {viml} | Neoformat | w! {output_file} | q! "  {dir_before + filename}'
     run_cmd(cmd)
     before = readlines(output_file)
     after = readlines('./after/cssbeautify-indent-6.css')
@@ -99,7 +108,7 @@ def test_formatprg_without_enable():
     viml = '''
     let &formatprg = 'css-beautify -s 6 -n'
     '''
-    cmd = f'nvim -u vimrc -c "set verbose=1 | {viml} | Neoformat | w! {output_file} | q! " --headless {dir_before + filename}'
+    cmd = f'vim -u vimrc -c "set verbose=1 | {viml} | Neoformat | w! {output_file} | q! "  {dir_before + filename}'
     run_cmd(cmd)
     before = readlines(output_file)
     after = readlines('./after/cssbeautify.css')
@@ -110,7 +119,7 @@ def test_vader():
     '''
     run *.vader tests
     '''
-    cmd = f'nvim -u vimrc -c "Vader! *.vader" --headless'
+    cmd = f'vim -u vimrc -c "Vader! *.vader" '
     exit_code = run_cmd(cmd)
     assert exit_code == 0
 
@@ -119,7 +128,7 @@ def test_autocompletion():
     '''
     run the vim autocompletion tests
     '''
-    cmd = f'nvim -u vimrc -c "source autocomplete_test.vim" --headless'
+    cmd = f'vim -u vimrc -c "source autocomplete_test.vim" '
     exit_code = run_cmd(cmd)
     assert exit_code == 0