diff --git a/README.md b/README.md
index 590e2c9..5467a09 100644
--- a/README.md
+++ b/README.md
@@ -31,4 +31,3 @@ You can serve this content with any HTTP file server, such as Nginx or even `htt
 Necessary extensions to render this site, beyond what's in incorporeal-cms:
 
 * pymdown-extensions
-* markdown-grid-tables
diff --git a/config.json b/config.json
index 2870141..711169b 100644
--- a/config.json
+++ b/config.json
@@ -16,8 +16,7 @@
 	},
 	"MARKDOWN_EXTENSIONS": [
 		"extra", "incorporealcms.mdx.figures", "incorporealcms.mdx.pydot",
-		"sane_lists", "smarty", "toc", "attr_list", "tables", "pymdownx.tilde", "md_in_html",
-		"markdown_grid_tables"
+		"sane_lists", "smarty", "toc", "attr_list", "tables", "pymdownx.tilde", "md_in_html"
 	],
 	"MARKDOWN_EXTENSION_CONFIGS": {
 		"extra": {