diff --git a/news/4126.internal.rst b/news/4126.internal.rst
new file mode 100644
index 000000000..f7c701d92
--- /dev/null
+++ b/news/4126.internal.rst
@@ -0,0 +1 @@
+Drop use of ``pkg_resources`` in code.  [maurits]
diff --git a/src/plone/app/mosaic/browser/main_template.py b/src/plone/app/mosaic/browser/main_template.py
index 1590a78b5..00b152769 100644
--- a/src/plone/app/mosaic/browser/main_template.py
+++ b/src/plone/app/mosaic/browser/main_template.py
@@ -1,4 +1,5 @@
 from hashlib import md5
+from importlib.resources import files
 from lxml import etree
 from lxml import html
 from plone.app.blocks.interfaces import IBlocksTransformEnabled
@@ -21,7 +22,6 @@
 
 import logging
 import os
-import pkg_resources
 import re
 
 
@@ -205,13 +205,13 @@ def __repr__(self):
 
 def resolve_ajax_main_template():
     main_template = os.path.join("browser", "templates", "ajax_main_template.pt")
-    filename = pkg_resources.resource_filename("Products.CMFPlone", main_template)
+    filename = files("Products.CMFPlone") / main_template
     return ViewPageTemplateFile(filename)
 
 
 def resolve_main_template():
     main_template = os.path.join("browser", "templates", "main_template.pt")
-    filename = pkg_resources.resource_filename("Products.CMFPlone", main_template)
+    filename = files("Products.CMFPlone") / main_template
     return ViewPageTemplateFile(filename)