diff --git a/README.md b/README.md
index 24bf615..1b61205 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ From: [bionic-reading.com/](https://bionic-reading.com/br-method/)
 
 > Bionic Reading® revises texts so that the most concise parts of words are highlighted. This guides the eye over the text and the brain remembers previously learned words more quickly. Save precious time. Gain advantages. Learn new things faster.
 
-Does Bionic Reading really speed-up your reading speed? According to this [paper](https://blog.readwise.io/bionic-reading-results/), probably not. Whatsoever it's still a nice screen reading technique that seems to help many people to stay focused during their reading session.
+Does Bionic Reading really speed-up your reading speed? According to this [paper](https://blog.readwise.io/bionic-reading-results/), probably not. Whatsoever it's still a nice screen reading technique that seems to help many people to stay focused during their reading sessions.
 
 ## Usage
 
diff --git a/requirements-dev.txt b/requirements-dev.txt
index a3adde8..77ce46d 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,3 +1,3 @@
-maturin==1.4.0
-pytest==8.0.0
-pytest-cov==4.1.0
+-r ./requirements-test.txt
+pre-commit>=3.5
+tox>=4.12.1
diff --git a/requirements-test.txt b/requirements-test.txt
new file mode 100644
index 0000000..a3adde8
--- /dev/null
+++ b/requirements-test.txt
@@ -0,0 +1,3 @@
+maturin==1.4.0
+pytest==8.0.0
+pytest-cov==4.1.0
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..1d22a0e
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,11 @@
+
+[tox]
+isolated_build = true
+envlist = { py38, py39, py310, py310, py311, py312 }
+skip_missing_interpreters = true
+
+[testenv]
+deps =
+    pytest
+    pytest-cov
+commands = pytest tests