diff --git a/docs/contribute.rst b/docs/contribute.rst
index 752565f6..2f5ef873 100644
--- a/docs/contribute.rst
+++ b/docs/contribute.rst
@@ -86,14 +86,9 @@ output." If you have made changes that affect the HTML output generated by
 Pelican, and the changes to that output are expected and deemed correct given
 the nature of your changes, then you should update the output used by the
 functional tests. To do so, **make sure you have both** ``en_EN.utf8`` **and**
-``fr_FR.utf8`` **locales installed**, and then run the following two commands::
+``fr_FR.utf8`` **locales installed**, and then run the following command::
 
-    LC_ALL=en_US.utf8 pelican -o pelican/tests/output/custom/ \
-        -s samples/pelican.conf.py samples/content/
-    LC_ALL=fr_FR.utf8 pelican -o pelican/tests/output/custom_locale/ \
-        -s samples/pelican.conf_FR.py samples/content/
-    LC_ALL=en_US.utf8 pelican -o pelican/tests/output/basic/ \
-        samples/content/
+    invoke update-functional-tests
 
 You may also find that some tests are skipped because some dependency (e.g.,
 Pandoc) is not installed. This does not automatically mean that these tests
diff --git a/tasks.py b/tasks.py
index 41ac2bde..8ecfc467 100644
--- a/tasks.py
+++ b/tasks.py
@@ -79,3 +79,17 @@ def setup(c):
     tools(c)
     c.run(f"{POETRY} install")
     precommit(c)
+
+
+@task
+def update_functional_tests(c):
+    """Update the generated functional test output"""
+    c.run(
+        f"bash -c 'LC_ALL=en_US.utf8 pelican -o {PKG_PATH}/tests/output/custom/ -s samples/pelican.conf.py samples/content/'"
+    )
+    c.run(
+        f"bash -c 'LC_ALL=fr_FR.utf8 pelican -o {PKG_PATH}/tests/output/custom_locale/ -s samples/pelican.conf_FR.py samples/content/'"
+    )
+    c.run(
+        f"bash -c 'LC_ALL=en_US.utf8 pelican -o {PKG_PATH}/tests/output/basic/ samples/content/'"
+    )