diff --git a/_sources/book/testing/Chapter.ipynb b/_sources/book/testing/Chapter.ipynb
index f4cd65b..4674171 100644
--- a/_sources/book/testing/Chapter.ipynb
+++ b/_sources/book/testing/Chapter.ipynb
@@ -25,7 +25,7 @@
     "\n",
     "Specify the number of CPUs you want to use with `--numprocesses`.\n",
     "\n",
-    "This allows to speed up your test executions."
+    "This allows you to speed up your test executions."
    ]
   },
   {
diff --git a/book/testing/Chapter.html b/book/testing/Chapter.html
index c062c01..160c5d6 100644
--- a/book/testing/Chapter.html
+++ b/book/testing/Chapter.html
@@ -432,7 +432,7 @@ <h2><span class="section-number">11.1.1. </span>Pytest on steroids: Parallelize
 <p>Your test suite takes a very long time to run in Python?</p>
 <p>With <code class="docutils literal notranslate"><span class="pre">pytest-xdist</span></code> installed, you can run your tests in parallel.</p>
 <p>Specify the number of CPUs you want to use with <code class="docutils literal notranslate"><span class="pre">--numprocesses</span></code>.</p>
-<p>This allows to speed up your test executions.</p>
+<p>This allows you to speed up your test executions.</p>
 <div class="cell docutils container">
 <div class="cell_input docutils container">
 <div class="highlight-python notranslate"><div class="highlight"><pre><span></span>!pip install pytest-xdist