diff --git a/build/azure-pipelines/linux/build.yml b/build/azure-pipelines/linux/build.yml
index 0861d80..b6dc190 100644
--- a/build/azure-pipelines/linux/build.yml
+++ b/build/azure-pipelines/linux/build.yml
@@ -1,8 +1,8 @@
 steps:
 - task: NodeTool@0
   inputs:
-    versionSpec: '20.14.0'
-  displayName: 'Use Node.js 20.14.0'
+    versionSpec: '22.22.0'
+  displayName: 'Use Node.js 22.22.0'
 
 - script: |
     npm ci
diff --git a/build/azure-pipelines/lsif-repository-tests.yml b/build/azure-pipelines/lsif-repository-tests.yml
index 4418b1d..729e26f 100644
--- a/build/azure-pipelines/lsif-repository-tests.yml
+++ b/build/azure-pipelines/lsif-repository-tests.yml
@@ -15,8 +15,8 @@ pool:
 steps:
 - task: NodeTool@0
   inputs:
-    versionSpec: '14.16.0'
-  displayName: 'Use Node.js 14.16.0'
+    versionSpec: '22.22.0'
+  displayName: 'Use Node.js 22.22.0'
 
 - script: |
     npm ci
diff --git a/build/azure-pipelines/pipeline.yml b/build/azure-pipelines/pipeline.yml
index 767fe05..4c89f77 100644
--- a/build/azure-pipelines/pipeline.yml
+++ b/build/azure-pipelines/pipeline.yml
@@ -45,13 +45,13 @@ extends:
         testPlatforms:
           - name: Linux
             nodeVersions:
-              - 20.9.0
+              - 22.22.0
           - name: MacOS
             nodeVersions:
-              - 20.9.0
+              - 22.22.0
           - name: Windows
             nodeVersions:
-              - 20.9.0
+              - 22.22.0
         testSteps:
           - template: /build/azure-pipelines/templates/test-steps.yml@self
             parameters:
@@ -74,13 +74,13 @@ extends:
         testPlatforms:
           - name: Linux
             nodeVersions:
-              - 20.9.0
+              - 22.22.0
           - name: MacOS
             nodeVersions:
-              - 20.9.0
+              - 22.22.0
           - name: Windows
             nodeVersions:
-              - 20.9.0
+              - 22.22.0
         testSteps:
           - template: /build/azure-pipelines/templates/test-steps.yml@self
             parameters:
diff --git a/build/azure-pipelines/win32/build.yml b/build/azure-pipelines/win32/build.yml
index c16b78c..22549a1 100644
--- a/build/azure-pipelines/win32/build.yml
+++ b/build/azure-pipelines/win32/build.yml
@@ -1,8 +1,8 @@
 steps:
 - task: NodeTool@0
   inputs:
-    versionSpec: '20.14.0'
-  displayName: 'Use Node.js 20.14.0'
+    versionSpec: '22.22.0'
+  displayName: 'Use Node.js 22.22.0'
 
 - script: |
     npm ci
diff --git a/language-service/package-lock.json b/language-service/package-lock.json
index 215a0ce..3a9935d 100644
--- a/language-service/package-lock.json
+++ b/language-service/package-lock.json
@@ -18,7 +18,7 @@
 				"@types/semver": "^7.5.7"
 			},
 			"engines": {
-				"node": ">=20.9.0"
+				"node": ">=22"
 			}
 		},
 		"@vscode/0.6.0-next.8": {
diff --git a/language-service/package.json b/language-service/package.json
index 86fef23..6653e3a 100644
--- a/language-service/package.json
+++ b/language-service/package.json
@@ -12,7 +12,7 @@
 		"url": "https://github.com/Microsoft/lsif-node/issues"
 	},
 	"engines": {
-		"node": ">=20.9.0"
+		"node": ">=22"
 	},
 	"main": "./lib/api.js",
 	"typings": "./lib/api.d.ts",
diff --git a/package-lock.json b/package-lock.json
index aa5361e..d3b66fa 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
 			"hasInstallScript": true,
 			"license": "MIT",
 			"devDependencies": {
-				"@types/node": "20.9.0",
+				"@types/node": "22.19.15",
 				"@types/shelljs": "^0.8.15",
 				"@types/uuid": "^10.0.0",
 				"@types/yargs": "^17.0.32",
@@ -177,13 +177,13 @@
 			"dev": true
 		},
 		"node_modules/@types/node": {
-			"version": "20.9.0",
-			"resolved": "https://registry.npmjs.org/@types/node/-/node-20.9.0.tgz",
-			"integrity": "sha512-nekiGu2NDb1BcVofVcEKMIwzlx4NjHlcjhoxxKBNLtz15Y1z7MYf549DFvkHSId02Ax6kGwWntIBPC3l/JZcmw==",
+			"version": "22.19.15",
+			"resolved": "https://registry.npmjs.org/@types/node/-/node-22.19.15.tgz",
+			"integrity": "sha512-F0R/h2+dsy5wJAUe3tAU6oqa2qbWY5TpNfL/RGmo1y38hiyO1w3x2jPtt76wmuaJI4DQnOBu21cNXQ2STIUUWg==",
 			"dev": true,
 			"license": "MIT",
 			"dependencies": {
-				"undici-types": "~5.26.4"
+				"undici-types": "~6.21.0"
 			}
 		},
 		"node_modules/@types/shelljs": {
@@ -2197,9 +2197,9 @@
 			}
 		},
 		"node_modules/undici-types": {
-			"version": "5.26.5",
-			"resolved": "https://registry.npmjs.org/undici-types/-/undici-types-5.26.5.tgz",
-			"integrity": "sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA==",
+			"version": "6.21.0",
+			"resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
+			"integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
 			"dev": true,
 			"license": "MIT"
 		},
@@ -2446,12 +2446,12 @@
 			"dev": true
 		},
 		"@types/node": {
-			"version": "20.9.0",
-			"resolved": "https://registry.npmjs.org/@types/node/-/node-20.9.0.tgz",
-			"integrity": "sha512-nekiGu2NDb1BcVofVcEKMIwzlx4NjHlcjhoxxKBNLtz15Y1z7MYf549DFvkHSId02Ax6kGwWntIBPC3l/JZcmw==",
+			"version": "22.19.15",
+			"resolved": "https://registry.npmjs.org/@types/node/-/node-22.19.15.tgz",
+			"integrity": "sha512-F0R/h2+dsy5wJAUe3tAU6oqa2qbWY5TpNfL/RGmo1y38hiyO1w3x2jPtt76wmuaJI4DQnOBu21cNXQ2STIUUWg==",
 			"dev": true,
 			"requires": {
-				"undici-types": "~5.26.4"
+				"undici-types": "~6.21.0"
 			}
 		},
 		"@types/shelljs": {
@@ -3817,9 +3817,9 @@
 			"dev": true
 		},
 		"undici-types": {
-			"version": "5.26.5",
-			"resolved": "https://registry.npmjs.org/undici-types/-/undici-types-5.26.5.tgz",
-			"integrity": "sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA==",
+			"version": "6.21.0",
+			"resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
+			"integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
 			"dev": true
 		},
 		"uri-js": {
diff --git a/package.json b/package.json
index 8e0670c..4bd34be 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
 	},
 	"homepage": "https://microsoft.github.io/language-server-protocol/overviews/lsif/overview/",
 	"devDependencies": {
-		"@types/node": "20.9.0",
+		"@types/node": "22.19.15",
 		"@types/shelljs": "^0.8.15",
 		"@types/uuid": "^10.0.0",
 		"@types/yargs": "^17.0.32",
diff --git a/protocol/package-lock.json b/protocol/package-lock.json
index 0dca394..422cd48 100644
--- a/protocol/package-lock.json
+++ b/protocol/package-lock.json
@@ -12,7 +12,7 @@
 				"vscode-languageserver-types": "^3.17.5"
 			},
 			"engines": {
-				"node": ">=20.9.0"
+				"node": ">=22"
 			}
 		},
 		"node_modules/vscode-languageserver-types": {
diff --git a/protocol/package.json b/protocol/package.json
index 056308c..cef2a4d 100644
--- a/protocol/package.json
+++ b/protocol/package.json
@@ -12,7 +12,7 @@
 		"url": "https://github.com/Microsoft/lsif-node/issues"
 	},
 	"engines": {
-		"node": ">=20.9.0"
+		"node": ">=22"
 	},
 	"main": "./lib/main.js",
 	"exports": {
diff --git a/sqlite/package-lock.json b/sqlite/package-lock.json
index 835809b..ec74c75 100644
--- a/sqlite/package-lock.json
+++ b/sqlite/package-lock.json
@@ -12,6 +12,7 @@
 				"better-sqlite3": "^10.1.0",
 				"lsif-protocol": "0.6.0-next.7",
 				"uuid": "^10.0.0",
+				"vscode-languageserver-types": "^3.17.5",
 				"vscode-uri": "^3.0.8",
 				"yargs": "^17.7.2"
 			},
@@ -20,14 +21,14 @@
 			},
 			"devDependencies": {
 				"@types/better-sqlite3": "^7.6.10",
-				"@types/node": "20.9.0",
+				"@types/node": "22.19.15",
 				"@types/uuid": "^10.0.0"
 			}
 		},
 		"node_modules/@types/better-sqlite3": {
-			"version": "7.6.10",
-			"resolved": "https://registry.npmjs.org/@types/better-sqlite3/-/better-sqlite3-7.6.10.tgz",
-			"integrity": "sha512-TZBjD+yOsyrUJGmcUj6OS3JADk3+UZcNv3NOBqGkM09bZdi28fNZw8ODqbMOLfKCu7RYCO62/ldq1iHbzxqoPw==",
+			"version": "7.6.13",
+			"resolved": "https://registry.npmjs.org/@types/better-sqlite3/-/better-sqlite3-7.6.13.tgz",
+			"integrity": "sha512-NMv9ASNARoKksWtsq/SHakpYAYnhBrQgGD8zkLYk/jaK8jUGn08CfEdTRgYhMypUQAfzSP8W6gNLe0q19/t4VA==",
 			"dev": true,
 			"license": "MIT",
 			"dependencies": {
@@ -35,13 +36,13 @@
 			}
 		},
 		"node_modules/@types/node": {
-			"version": "20.9.0",
-			"resolved": "https://registry.npmjs.org/@types/node/-/node-20.9.0.tgz",
-			"integrity": "sha512-nekiGu2NDb1BcVofVcEKMIwzlx4NjHlcjhoxxKBNLtz15Y1z7MYf549DFvkHSId02Ax6kGwWntIBPC3l/JZcmw==",
+			"version": "22.19.15",
+			"resolved": "https://registry.npmjs.org/@types/node/-/node-22.19.15.tgz",
+			"integrity": "sha512-F0R/h2+dsy5wJAUe3tAU6oqa2qbWY5TpNfL/RGmo1y38hiyO1w3x2jPtt76wmuaJI4DQnOBu21cNXQ2STIUUWg==",
 			"dev": true,
 			"license": "MIT",
 			"dependencies": {
-				"undici-types": "~5.26.4"
+				"undici-types": "~6.21.0"
 			}
 		},
 		"node_modules/@types/uuid": {
@@ -97,6 +98,7 @@
 			"resolved": "https://registry.npmjs.org/better-sqlite3/-/better-sqlite3-10.1.0.tgz",
 			"integrity": "sha512-hqpHJaCfKEZFaAWdMh6crdzRWyzQzfP6Ih8TYI0vFn01a6ZTDSbJIMXN+6AMBaBOh99DzUy8l3PsV9R3qnJDng==",
 			"hasInstallScript": true,
+			"license": "MIT",
 			"dependencies": {
 				"bindings": "^1.5.0",
 				"prebuild-install": "^7.1.1"
@@ -586,10 +588,11 @@
 			}
 		},
 		"node_modules/undici-types": {
-			"version": "5.26.5",
-			"resolved": "https://registry.npmjs.org/undici-types/-/undici-types-5.26.5.tgz",
-			"integrity": "sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA==",
-			"dev": true
+			"version": "6.21.0",
+			"resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
+			"integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
+			"dev": true,
+			"license": "MIT"
 		},
 		"node_modules/util-deprecate": {
 			"version": "1.0.2",
@@ -626,10 +629,17 @@
 				"vscode-languageserver-types": "3.16.0"
 			}
 		},
-		"node_modules/vscode-languageserver-types": {
+		"node_modules/vscode-languageserver-protocol/node_modules/vscode-languageserver-types": {
 			"version": "3.16.0",
 			"resolved": "https://registry.npmjs.org/vscode-languageserver-types/-/vscode-languageserver-types-3.16.0.tgz",
-			"integrity": "sha512-k8luDIWJWyenLc5ToFQQMaSrqCHiLwyKPHKPQZ5zz21vM+vIVUSvsRpcbiECH4WR88K2XZqc4ScRcZ7nk/jbeA=="
+			"integrity": "sha512-k8luDIWJWyenLc5ToFQQMaSrqCHiLwyKPHKPQZ5zz21vM+vIVUSvsRpcbiECH4WR88K2XZqc4ScRcZ7nk/jbeA==",
+			"license": "MIT"
+		},
+		"node_modules/vscode-languageserver-types": {
+			"version": "3.17.5",
+			"resolved": "https://registry.npmjs.org/vscode-languageserver-types/-/vscode-languageserver-types-3.17.5.tgz",
+			"integrity": "sha512-Ld1VelNuX9pdF39h2Hgaeb5hEZM2Z3jUrrMgWQAu82jMtZp7p3vJT3BzToKtZI7NgQssZje5o0zryOrhQvzQAg==",
+			"license": "MIT"
 		},
 		"node_modules/vscode-uri": {
 			"version": "3.0.8",
@@ -698,21 +708,21 @@
 	},
 	"dependencies": {
 		"@types/better-sqlite3": {
-			"version": "7.6.10",
-			"resolved": "https://registry.npmjs.org/@types/better-sqlite3/-/better-sqlite3-7.6.10.tgz",
-			"integrity": "sha512-TZBjD+yOsyrUJGmcUj6OS3JADk3+UZcNv3NOBqGkM09bZdi28fNZw8ODqbMOLfKCu7RYCO62/ldq1iHbzxqoPw==",
+			"version": "7.6.13",
+			"resolved": "https://registry.npmjs.org/@types/better-sqlite3/-/better-sqlite3-7.6.13.tgz",
+			"integrity": "sha512-NMv9ASNARoKksWtsq/SHakpYAYnhBrQgGD8zkLYk/jaK8jUGn08CfEdTRgYhMypUQAfzSP8W6gNLe0q19/t4VA==",
 			"dev": true,
 			"requires": {
 				"@types/node": "*"
 			}
 		},
 		"@types/node": {
-			"version": "20.9.0",
-			"resolved": "https://registry.npmjs.org/@types/node/-/node-20.9.0.tgz",
-			"integrity": "sha512-nekiGu2NDb1BcVofVcEKMIwzlx4NjHlcjhoxxKBNLtz15Y1z7MYf549DFvkHSId02Ax6kGwWntIBPC3l/JZcmw==",
+			"version": "22.19.15",
+			"resolved": "https://registry.npmjs.org/@types/node/-/node-22.19.15.tgz",
+			"integrity": "sha512-F0R/h2+dsy5wJAUe3tAU6oqa2qbWY5TpNfL/RGmo1y38hiyO1w3x2jPtt76wmuaJI4DQnOBu21cNXQ2STIUUWg==",
 			"dev": true,
 			"requires": {
-				"undici-types": "~5.26.4"
+				"undici-types": "~6.21.0"
 			}
 		},
 		"@types/uuid": {
@@ -1081,9 +1091,9 @@
 			}
 		},
 		"undici-types": {
-			"version": "5.26.5",
-			"resolved": "https://registry.npmjs.org/undici-types/-/undici-types-5.26.5.tgz",
-			"integrity": "sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA==",
+			"version": "6.21.0",
+			"resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
+			"integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
 			"dev": true
 		},
 		"util-deprecate": {
@@ -1108,12 +1118,19 @@
 			"requires": {
 				"vscode-jsonrpc": "6.0.0",
 				"vscode-languageserver-types": "3.16.0"
+			},
+			"dependencies": {
+				"vscode-languageserver-types": {
+					"version": "3.16.0",
+					"resolved": "https://registry.npmjs.org/vscode-languageserver-types/-/vscode-languageserver-types-3.16.0.tgz",
+					"integrity": "sha512-k8luDIWJWyenLc5ToFQQMaSrqCHiLwyKPHKPQZ5zz21vM+vIVUSvsRpcbiECH4WR88K2XZqc4ScRcZ7nk/jbeA=="
+				}
 			}
 		},
 		"vscode-languageserver-types": {
-			"version": "3.16.0",
-			"resolved": "https://registry.npmjs.org/vscode-languageserver-types/-/vscode-languageserver-types-3.16.0.tgz",
-			"integrity": "sha512-k8luDIWJWyenLc5ToFQQMaSrqCHiLwyKPHKPQZ5zz21vM+vIVUSvsRpcbiECH4WR88K2XZqc4ScRcZ7nk/jbeA=="
+			"version": "3.17.5",
+			"resolved": "https://registry.npmjs.org/vscode-languageserver-types/-/vscode-languageserver-types-3.17.5.tgz",
+			"integrity": "sha512-Ld1VelNuX9pdF39h2Hgaeb5hEZM2Z3jUrrMgWQAu82jMtZp7p3vJT3BzToKtZI7NgQssZje5o0zryOrhQvzQAg=="
 		},
 		"vscode-uri": {
 			"version": "3.0.8",
diff --git a/sqlite/package.json b/sqlite/package.json
index 4fc8f74..b21c613 100644
--- a/sqlite/package.json
+++ b/sqlite/package.json
@@ -20,13 +20,14 @@
 		"better-sqlite3": "^10.1.0",
 		"lsif-protocol": "0.6.0-next.7",
 		"uuid": "^10.0.0",
+		"vscode-languageserver-types": "^3.17.5",
 		"vscode-uri": "^3.0.8",
 		"yargs": "^17.7.2"
 	},
 	"devDependencies": {
 		"@types/better-sqlite3": "^7.6.10",
 		"@types/uuid": "^10.0.0",
-		"@types/node": "20.9.0"
+		"@types/node": "22.19.15"
 	},
 	"scripts": {
 		"compile": "tsc -b ./tsconfig.json",
diff --git a/sqlite/src/blobStore.ts b/sqlite/src/blobStore.ts
index c64ae84..aee2096 100644
--- a/sqlite/src/blobStore.ts
+++ b/sqlite/src/blobStore.ts
@@ -9,7 +9,7 @@ import Sqlite from 'better-sqlite3';
 
 import * as uuid from 'uuid';
 
-import * as lsp from 'vscode-languageserver-protocol';
+import * as lsp from 'vscode-languageserver-types';
 
 import {
 	Edge, Vertex, ElementTypes, VertexLabels, Document, Range, EdgeLabels, contains, Event, EventScope, EventKind, Id, DocumentEvent, FoldingRangeResult,
diff --git a/sqlite/src/compress.ts b/sqlite/src/compress.ts
index dec8471..a051aee 100644
--- a/sqlite/src/compress.ts
+++ b/sqlite/src/compress.ts
@@ -4,7 +4,7 @@
  * ------------------------------------------------------------------------------------------ */
 'use strict';
 
-import * as lsp from 'vscode-languageserver-protocol';
+import * as lsp from 'vscode-languageserver-types';
 
 import {
 	Element, ElementTypes, VertexLabels, V, DeclarationTag, UnknownTag, ResultSet, RangeTagTypes, DefinitionTag, ReferenceTag, RangeTag, Range,