diff --git a/extensions.json b/extensions.json
index 544c0746c..9340b22cc 100644
--- a/extensions.json
+++ b/extensions.json
@@ -660,6 +660,10 @@
       "download": "https://github.com/microsoft/vscode-pull-request-github/releases/download/v0.29.2/vscode-pull-request-github-0.29.2.vsix",
       "version": "0.29.2"
     },
+    {
+      "id": "goessner.mdmath",
+      "repository": "https://github.com/goessner/mdmath"
+    },
     {
       "id": "golang.go",
       "download": "https://github.com/golang/vscode-go/releases/download/v0.27.1/go-0.27.1.vsix",