diff --git a/language-server/package-lock.json b/language-server/package-lock.json
index 496049e..298ac45 100644
--- a/language-server/package-lock.json
+++ b/language-server/package-lock.json
@@ -5,7 +5,7 @@
   "packages": {
     "": {
       "dependencies": {
-        "pyright": "^1.1.373"
+        "pyright": "^1.1.374"
       }
     },
     "node_modules/fsevents": {
@@ -22,9 +22,9 @@
       }
     },
     "node_modules/pyright": {
-      "version": "1.1.373",
-      "resolved": "https://registry.npmjs.org/pyright/-/pyright-1.1.373.tgz",
-      "integrity": "sha512-ZJSjqnHbeZowUnuAiojZqCLeY1XVzRIc2GvMFFNy/z6YSyJXwChPDQL5Jl2bavTvXNO0ITRmMBVvoKCRN7cc3g==",
+      "version": "1.1.374",
+      "resolved": "https://registry.npmjs.org/pyright/-/pyright-1.1.374.tgz",
+      "integrity": "sha512-ISbC1YnYDYrEatoKKjfaA5uFIp0ddC/xw9aSlN/EkmwupXUMVn41Jl+G6wHEjRhC+n4abHZeGpEvxCUus/K9dA==",
       "bin": {
         "pyright": "index.js",
         "pyright-langserver": "langserver.index.js"
@@ -45,9 +45,9 @@
       "optional": true
     },
     "pyright": {
-      "version": "1.1.373",
-      "resolved": "https://registry.npmjs.org/pyright/-/pyright-1.1.373.tgz",
-      "integrity": "sha512-ZJSjqnHbeZowUnuAiojZqCLeY1XVzRIc2GvMFFNy/z6YSyJXwChPDQL5Jl2bavTvXNO0ITRmMBVvoKCRN7cc3g==",
+      "version": "1.1.374",
+      "resolved": "https://registry.npmjs.org/pyright/-/pyright-1.1.374.tgz",
+      "integrity": "sha512-ISbC1YnYDYrEatoKKjfaA5uFIp0ddC/xw9aSlN/EkmwupXUMVn41Jl+G6wHEjRhC+n4abHZeGpEvxCUus/K9dA==",
       "requires": {
         "fsevents": "~2.3.3"
       }
diff --git a/language-server/package.json b/language-server/package.json
index 4519147..bd71fe9 100644
--- a/language-server/package.json
+++ b/language-server/package.json
@@ -1,6 +1,6 @@
 {
   "private": true,
   "dependencies": {
-    "pyright": "^1.1.373"
+    "pyright": "^1.1.374"
   }
 }
diff --git a/sublime-package.json b/sublime-package.json
index 6cb9a42..8d9f862 100644
--- a/sublime-package.json
+++ b/sublime-package.json
@@ -473,6 +473,11 @@
               "title": "Enable the use of experimental features that are not part of the Python typing spec",
               "type": "boolean"
             },
+            "enableReachabilityAnalysis": {
+              "default": true,
+              "title": "Identify code determined to be unreachable through type analysis",
+              "type": "boolean"
+            },
             "enableTypeIgnoreComments": {
               "default": true,
               "title": "Allow \"# type: ignore\" comments",
@@ -958,6 +963,9 @@
             "enableExperimentalFeatures": {
               "$ref": "#/definitions/enableExperimentalFeatures"
             },
+            "enableReachabilityAnalysis": {
+              "$ref": "#/definitions/enableReachabilityAnalysis"
+            },
             "enableTypeIgnoreComments": {
               "$ref": "#/definitions/enableTypeIgnoreComments"
             },
@@ -985,6 +993,9 @@
                   "enableExperimentalFeatures": {
                     "$ref": "#/definitions/enableExperimentalFeatures"
                   },
+                  "enableReachabilityAnalysis": {
+                    "$ref": "#/definitions/enableReachabilityAnalysis"
+                  },
                   "enableTypeIgnoreComments": {
                     "$ref": "#/definitions/enableTypeIgnoreComments"
                   },