diff --git a/packages/graphql-language-service-server/package.json b/packages/graphql-language-service-server/package.json
index ed7111aa4b0..b1432919157 100644
--- a/packages/graphql-language-service-server/package.json
+++ b/packages/graphql-language-service-server/package.json
@@ -44,6 +44,7 @@
     "nullthrows": "^1.0.0",
     "vscode-jsonrpc": "^5.0.1",
     "vscode-languageserver": "^6.1.1",
+    "vscode-languageserver-protocol": "~3.15.3",
     "fast-glob": "^3.2.7",
     "vscode-uri": "^3.0.2",
     "glob": "^7.2.0",
diff --git a/yarn.lock b/yarn.lock
index d2a53b446bf..b54a8fb8a19 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -19328,7 +19328,7 @@ vscode-languageserver-protocol@3.14.1:
     vscode-jsonrpc "^4.0.0"
     vscode-languageserver-types "3.14.0"
 
-vscode-languageserver-protocol@^3.15.3:
+vscode-languageserver-protocol@^3.15.3, vscode-languageserver-protocol@~3.15.3:
   version "3.15.3"
   resolved "https://registry.yarnpkg.com/vscode-languageserver-protocol/-/vscode-languageserver-protocol-3.15.3.tgz#3fa9a0702d742cf7883cb6182a6212fcd0a1d8bb"
   integrity sha512-zrMuwHOAQRhjDSnflWdJG+O2ztMWss8GqUUB8dXLR/FPenwkiBNkMIJJYfSN6sgskvsF0rHAoBowNQfbyZnnvw==