diff --git a/Dockerfile b/Dockerfile
index 81e7019..dd6f55a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,6 @@
 FROM python:3.7 AS base
 WORKDIR /usr/src/app
 RUN apt-get update \
-    && apt-get install -y enchant \
     && rm -rf /var/lib/apt/lists/*
 
 RUN pip install coveralls
diff --git a/requirements.txt b/requirements.txt
index 9925baf..e0b2562 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,6 +4,7 @@ Pygments
 Sphinx
 coverage
 docutils
+importlib_metadata<5
 flake8; python_version == '2.7' or python_version >= '3.4'
 invoke
 mccabe