diff --git a/tutorindigo/plugin.py b/tutorindigo/plugin.py
index 0e8edf73d..24859de1f 100644
--- a/tutorindigo/plugin.py
+++ b/tutorindigo/plugin.py
@@ -3,7 +3,7 @@
 import os
 import typing as t
 
-import pkg_resources
+import importlib_resources
 from tutor import hooks
 from tutor.__about__ import __version_suffix__
 
@@ -39,8 +39,11 @@
 }
 
 # Theme templates
-hooks.Filters.ENV_TEMPLATE_ROOTS.add_item(
-    pkg_resources.resource_filename("tutorindigo", "templates")
+hooks.Filters.ENV_TEMPLATE_ROOTS.add_items(
+    [
+        # Root paths for template files, relative to the project root.
+        str(importlib_resources.files("tutorindigo") / "templates"),
+    ]
 )
 # This is where the theme is rendered in the openedx build directory
 hooks.Filters.ENV_TEMPLATE_TARGETS.add_items(
@@ -57,7 +60,7 @@
 # init script: set theme automatically
 with open(
     os.path.join(
-        pkg_resources.resource_filename("tutorindigo", "templates"),
+        str(importlib_resources.files("tutorindigo") / "templates"),
         "indigo",
         "tasks",
         "init.sh",