diff --git a/.gitignore b/.gitignore
index ea8ad88..cfdc646 100644
--- a/.gitignore
+++ b/.gitignore
@@ -78,4 +78,7 @@ celerybeat-schedule
 .env
 
 # Spyder project settings
-.spyderproject
\ No newline at end of file
+.spyderproject
+pyproject.toml
+uv.lock
+.DS_Store
diff --git a/setup.py b/setup.py
index fef9b2a..c1cc7b5 100644
--- a/setup.py
+++ b/setup.py
@@ -24,8 +24,8 @@
     packages=[
         'tracery',
     ],
-    python_requires='>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*',
-    install_requires=[],
+    python_requires='>3.5',
+    install_requires=['pyjson5>=1.6.7'],
     license="Apache License 2.0",
     zip_safe=True,
     keywords='tracery',
diff --git a/tests/test_grammar.json b/tests/test_grammar.json
new file mode 100644
index 0000000..faa3706
--- /dev/null
+++ b/tests/test_grammar.json
@@ -0,0 +1,29 @@
+ // json5 supports comments
+
+ {
+    'deepHash': ["\\#00FF00", "\\#FF00FF"],
+    'deeperHash': ["#deepHash#"],
+    'animal': ["bear", "cat", "dog", "fox", "giraffe", "hippopotamus"],
+    'mood': ["quiet", "morose", "gleeful", "happy", "bemused", "clever",
+             "jovial", "vexatious", "curious", "anxious", "obtuse", "serene",
+             "demure"],
+    'nonrecursiveStory': ["The #pet# went to the beach."],
+    'recursiveStory': [
+        "The #pet# opened a book about[pet:#mood# #animal#] #pet.a#. #story#[pet:POP] The #pet# closed the book."],
+    'svgColor': ["rgb(120,180,120)", "rgb(240,140,40)", "rgb(150,45,55)",
+                 "rgb(150,145,125)", "rgb(220,215,195)", "rgb(120,250,190)"],
+    'svgStyle': ['style="fill:#svgColor#;stroke-width:3;stroke:#svgColor#"'],
+    "name": ["Cheri", "Fox", "Morgana", "Jedoo", "Brick", "Shadow", "Krox",
+             "Urga", "Zelph"],
+    "story": ["#hero.capitalize# was a great #occupation#, and this song tells of #heroTheir# adventure. #hero.capitalize# #didStuff#, then #heroThey# #didStuff#, then #heroThey# went home to read a book."],
+    "monster": ["dragon", "ogre", "witch", "wizard", "goblin", "golem",
+                "giant", "sphinx", "warlord"],
+    "setPronouns": [
+        "[heroThey:they][heroThem:them][heroTheir:their][heroTheirs:theirs]",
+        "[heroThey:she][heroThem:her][heroTheir:her][heroTheirs:hers]",
+        "[heroThey:he][heroThem:him][heroTheir:his][heroTheirs:his]"],
+    "setOccupation": [
+        "[occupation:baker][didStuff:baked bread,decorated cupcakes,folded dough,made croissants,iced a cake]",
+        "[occupation:warrior][didStuff:fought #monster.a#,saved a village from #monster.a#,battled #monster.a#,defeated #monster.a#]"],
+    "origin": ["#[#setPronouns#][#setOccupation#][hero:#name#]story#"]
+    }
\ No newline at end of file
diff --git a/tests/test_tracery.py b/tests/test_tracery.py
index b709bdb..e4b73fb 100644
--- a/tests/test_tracery.py
+++ b/tests/test_tracery.py
@@ -11,44 +11,15 @@
 sys.path.append(
     os.path.abspath(os.path.join(os.path.dirname(__file__), os.path.pardir)))
 
+import pyjson5
+
 import tracery
 from tracery.modifiers import base_english
 
 
-test_grammar = {
-    'deepHash': ["\\#00FF00", "\\#FF00FF"],
-    'deeperHash': ["#deepHash#"],
-    'animal': ["bear", "cat", "dog", "fox", "giraffe", "hippopotamus"],
-    'mood': ["quiet", "morose", "gleeful", "happy", "bemused", "clever",
-             "jovial", "vexatious", "curious", "anxious", "obtuse", "serene",
-             "demure"],
-    'nonrecursiveStory': ["The #pet# went to the beach."],
-    'recursiveStory': [
-        "The #pet# opened a book about[pet:#mood# #animal#] #pet.a#. "
-        "#story#[pet:POP] The #pet# closed the book."],
-    'svgColor': ["rgb(120,180,120)", "rgb(240,140,40)", "rgb(150,45,55)",
-                 "rgb(150,145,125)", "rgb(220,215,195)", "rgb(120,250,190)"],
-    'svgStyle': ['style="fill:#svgColor#;stroke-width:3;stroke:#svgColor#"'],
-    "name": ["Cheri", "Fox", "Morgana", "Jedoo", "Brick", "Shadow", "Krox",
-             "Urga", "Zelph"],
-    "story": ["#hero.capitalize# was a great #occupation#, and this song "
-              "tells of #heroTheir# adventure. #hero.capitalize# #didStuff#, "
-              "then #heroThey# #didStuff#, then #heroThey# went home "
-              "to read a book."],
-    "monster": ["dragon", "ogre", "witch", "wizard", "goblin", "golem",
-                "giant", "sphinx", "warlord"],
-    "setPronouns": [
-        "[heroThey:they][heroThem:them][heroTheir:their][heroTheirs:theirs]",
-        "[heroThey:she][heroThem:her][heroTheir:her][heroTheirs:hers]",
-        "[heroThey:he][heroThem:him][heroTheir:his][heroTheirs:his]"],
-    "setOccupation": [
-        "[occupation:baker][didStuff:baked bread,decorated cupcakes,"
-        "folded dough,made croissants,iced a cake]",
-        "[occupation:warrior][didStuff:fought #monster.a#,saved a village "
-        "from #monster.a#,battled #monster.a#,defeated #monster.a#]"],
-    "origin": ["#[#setPronouns#][#setOccupation#][hero:#name#]story#"]
-    }
-
+with open('tests/test_grammar.json') as data_file:
+    """We'll open the test grammar as a file now, instead of having it inline"""
+    test_grammar = pyjson5.decode_io(data_file)
 
 class TestPytracery(unittest.TestCase):
     """Common setUp and helpers"""
diff --git a/tracery/__main__.py b/tracery/__main__.py
index b04faac..8e80f28 100755
--- a/tracery/__main__.py
+++ b/tracery/__main__.py
@@ -5,7 +5,7 @@
 """
 from __future__ import print_function, unicode_literals
 import argparse
-import json
+import pyjson5
 
 import tracery
 from tracery.modifiers import base_english
@@ -22,7 +22,7 @@
     args = parser.parse_args()
 
     with open(args.json) as data_file:
-        rules = json.load(data_file)
+        rules = pyjson5.decode_io(data_file)
 
     grammar = tracery.Grammar(rules)
     grammar.add_modifiers(base_english)