diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index cde9d5fe..5eb580f1 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -1205,8 +1205,8 @@ importers:
         specifier: ^8.1.0
         version: 8.2.0
       vscode-languageclient:
-        specifier: ^8.1.0
-        version: 8.1.0
+        specifier: ^9.0.0
+        version: 9.0.1
       vscode-languageserver:
         specifier: ^8.1.0
         version: 8.1.0
@@ -1248,8 +1248,8 @@ importers:
         specifier: ^8.1.0
         version: 8.2.0
       vscode-languageclient:
-        specifier: ~8.0.2
-        version: 8.0.2
+        specifier: ~9.0.0
+        version: 9.0.1
       vscode-languageserver:
         specifier: ^8.1.0
         version: 8.1.0
@@ -4836,7 +4836,7 @@ packages:
       '@commitlint/types': 17.4.4
       '@types/node': 20.4.7
       chalk: 4.1.0
-      cosmiconfig: 8.3.6(typescript@4.9.5)
+      cosmiconfig: 8.3.6(typescript@5.2.0-beta)
       cosmiconfig-typescript-loader: 4.4.0(@types/node@20.4.7)(cosmiconfig@8.3.6)(ts-node@10.9.1)(typescript@4.9.5)
       lodash.isplainobject: 4.0.6
       lodash.merge: 4.6.2
@@ -21226,7 +21226,7 @@ packages:
       typescript: '>=4'
     dependencies:
       '@types/node': 20.4.7
-      cosmiconfig: 8.3.6(typescript@4.9.5)
+      cosmiconfig: 8.3.6(typescript@5.2.0-beta)
       ts-node: 10.9.1(@swc/core@1.3.90)(@types/node@20.4.7)(typescript@4.9.5)
       typescript: 4.9.5
 
@@ -21284,6 +21284,7 @@ packages:
       parse-json: 5.2.0
       path-type: 4.0.0(patch_hash=t2y4p5c63ifj2lrtth34hk3bda)
       typescript: 4.9.5
+    dev: false
 
   /cosmiconfig@8.3.6(typescript@5.2.0-beta):
     resolution: {integrity: sha512-kcZ6+W5QzcJ3P1Mt+83OUv/oHFqZHIx8DuxG6eZ5RGMERoLqp4BuGjhHLYGK+Kf5XVkQvqBSmAy/nGWN3qDgEA==}
@@ -41141,13 +41142,13 @@ packages:
       vscode-languageserver-protocol: 3.17.2
     dev: false
 
-  /vscode-languageclient@8.1.0:
-    resolution: {integrity: sha512-GL4QdbYUF/XxQlAsvYWZRV3V34kOkpRlvV60/72ghHfsYFnS/v2MANZ9P6sHmxFcZKOse8O+L9G7Czg0NUWing==}
-    engines: {vscode: ^1.67.0}
+  /vscode-languageclient@9.0.1:
+    resolution: {integrity: sha512-JZiimVdvimEuHh5olxhxkht09m3JzUGwggb5eRUkzzJhZ2KjCN0nh55VfiED9oez9DyF8/fz1g1iBV3h+0Z2EA==}
+    engines: {vscode: ^1.82.0}
     dependencies:
       minimatch: 5.1.6
       semver: 7.5.4
-      vscode-languageserver-protocol: 3.17.3
+      vscode-languageserver-protocol: 3.17.5
     dev: false
 
   /vscode-languageserver-protocol@3.17.2:
@@ -41163,6 +41164,13 @@ packages:
       vscode-languageserver-types: 3.17.3
     dev: false
 
+  /vscode-languageserver-protocol@3.17.5:
+    resolution: {integrity: sha512-mb1bvRJN8SVznADSGWM9u/b07H7Ecg0I3OgXDuLdn307rl/J3A9YD6/eYOssqhecL27hK1IPZAsaqh00i/Jljg==}
+    dependencies:
+      vscode-jsonrpc: 8.2.0
+      vscode-languageserver-types: 3.17.5
+    dev: false
+
   /vscode-languageserver-textdocument@1.0.11:
     resolution: {integrity: sha512-X+8T3GoiwTVlJbicx/sIAF+yuJAqz8VvwJyoMVhwEMoEKE/fkDmrqUgDMyBECcM2A2frVZIUj5HI/ErRXCfOeA==}
 
@@ -41173,6 +41181,10 @@ packages:
     resolution: {integrity: sha512-SYU4z1dL0PyIMd4Vj8YOqFvHu7Hz/enbWtpfnVbJHU4Nd1YNYx8u0ennumc6h48GQNeOLxmwySmnADouT/AuZA==}
     dev: false
 
+  /vscode-languageserver-types@3.17.5:
+    resolution: {integrity: sha512-Ld1VelNuX9pdF39h2Hgaeb5hEZM2Z3jUrrMgWQAu82jMtZp7p3vJT3BzToKtZI7NgQssZje5o0zryOrhQvzQAg==}
+    dev: false
+
   /vscode-languageserver@8.0.2:
     resolution: {integrity: sha512-bpEt2ggPxKzsAOZlXmCJ50bV7VrxwCS5BI4+egUmure/oI/t4OlFzi/YNtVvY24A2UDOZAgwFGgnZPwqSJubkA==}
     hasBin: true
diff --git a/tools/forecast/codegen/package.json b/tools/forecast/codegen/package.json
index 0a44702f..095adb70 100644
--- a/tools/forecast/codegen/package.json
+++ b/tools/forecast/codegen/package.json
@@ -20,7 +20,7 @@
     "ts-pattern": "^5.0.5",
     "vscode": "^1.1.37",
     "vscode-jsonrpc": "^8.1.0",
-    "vscode-languageclient": "^8.1.0",
+    "vscode-languageclient": "^9.0.0",
     "vscode-languageserver": "^8.1.0",
     "vscode-languageserver-textdocument": "^1.0.8",
     "vscode-uri": "^3.0.7"
diff --git a/tools/forecast/language/package.json b/tools/forecast/language/package.json
index 2d9613f8..a13733d5 100644
--- a/tools/forecast/language/package.json
+++ b/tools/forecast/language/package.json
@@ -44,7 +44,7 @@
     "pluralize": "^8.0.0",
     "ts-pattern": "^5.0.5",
     "vscode-jsonrpc": "^8.1.0",
-    "vscode-languageclient": "~8.0.2",
+    "vscode-languageclient": "~9.0.0",
     "vscode-languageserver": "^8.1.0",
     "vscode-languageserver-textdocument": "^1.0.8",
     "vscode-uri": "^3.0.7"