diff --git a/language-server/package-lock.json b/language-server/package-lock.json
index 48099d3..82da7ba 100644
--- a/language-server/package-lock.json
+++ b/language-server/package-lock.json
@@ -5,13 +5,13 @@
   "packages": {
     "": {
       "dependencies": {
-        "basedpyright": "^1.12.3"
+        "basedpyright": "^1.12.4"
       }
     },
     "node_modules/basedpyright": {
-      "version": "1.12.3",
-      "resolved": "https://registry.npmjs.org/basedpyright/-/basedpyright-1.12.3.tgz",
-      "integrity": "sha512-XF1knQ07zYXKnU5hSRF6jLjs3BToPLx/usNK9v10O16o2Fg/hC3Z0M0oxDh0rkey/4BDxYyl1i9kC3Urw9pZhg==",
+      "version": "1.12.4",
+      "resolved": "https://registry.npmjs.org/basedpyright/-/basedpyright-1.12.4.tgz",
+      "integrity": "sha512-kpAmAcsur03ocXo7gk0ZvUC/Q1rz+fT7Vp4+KbngkrgrX+QkIrLrIWMMoeRB1X1g8vQ8dTcueSn1IFeTF6Sr3g==",
       "bin": {
         "pyright": "index.js",
         "pyright-langserver": "langserver.index.js"
@@ -39,9 +39,9 @@
   },
   "dependencies": {
     "basedpyright": {
-      "version": "1.12.3",
-      "resolved": "https://registry.npmjs.org/basedpyright/-/basedpyright-1.12.3.tgz",
-      "integrity": "sha512-XF1knQ07zYXKnU5hSRF6jLjs3BToPLx/usNK9v10O16o2Fg/hC3Z0M0oxDh0rkey/4BDxYyl1i9kC3Urw9pZhg==",
+      "version": "1.12.4",
+      "resolved": "https://registry.npmjs.org/basedpyright/-/basedpyright-1.12.4.tgz",
+      "integrity": "sha512-kpAmAcsur03ocXo7gk0ZvUC/Q1rz+fT7Vp4+KbngkrgrX+QkIrLrIWMMoeRB1X1g8vQ8dTcueSn1IFeTF6Sr3g==",
       "requires": {
         "fsevents": "~2.3.3"
       }
diff --git a/language-server/package.json b/language-server/package.json
index ca6de69..ba67f10 100644
--- a/language-server/package.json
+++ b/language-server/package.json
@@ -1,6 +1,6 @@
 {
   "private": true,
   "dependencies": {
-    "basedpyright": "^1.12.3"
+    "basedpyright": "^1.12.4"
   }
 }
diff --git a/sublime-package.json b/sublime-package.json
index 88acb80..3909e01 100644
--- a/sublime-package.json
+++ b/sublime-package.json
@@ -588,6 +588,12 @@
               "title": "Analysis settings to use for specified subdirectories of code",
               "type": "array"
             },
+            "extends": {
+              "$id": "#/properties/extends",
+              "pattern": "^(.*)$",
+              "title": "Path to configuration file that this configuration extends",
+              "type": "string"
+            },
             "extraPaths": {
               "$id": "#/properties/extraPaths",
               "items": {