diff --git a/autoload/ale/python.vim b/autoload/ale/python.vim
index 7ed22367..fc6c1130 100644
--- a/autoload/ale/python.vim
+++ b/autoload/ale/python.vim
@@ -32,6 +32,8 @@ function! ale#python#FindProjectRootIni(buffer) abort
         \|| filereadable(l:path . '/.pylintrc')
         \|| filereadable(l:path . '/Pipfile')
         \|| filereadable(l:path . '/Pipfile.lock')
+        \|| filereadable(l:path . '/poetry.lock')
+        \|| filereadable(l:path . '/pyproject.toml')
             return l:path
         endif
     endfor
diff --git a/doc/ale-python.txt b/doc/ale-python.txt
index 504705f2..1f263e84 100644
--- a/doc/ale-python.txt
+++ b/doc/ale-python.txt
@@ -36,6 +36,8 @@ ALE will look for configuration files with the following filenames. >
   .pylintrc
   Pipfile
   Pipfile.lock
+  poetry.lock 
+  pyproject.toml
 <
 
 The first directory containing any of the files named above will be used.