diff --git a/lib/spawn.ts b/lib/spawn.ts
index 47699e37..36b8907e 100644
--- a/lib/spawn.ts
+++ b/lib/spawn.ts
@@ -1,5 +1,4 @@
 import spawn from 'cross-spawn';
-import Promise from 'bluebird';
 import CacheStream from './cache_stream';
 
 import { SpawnOptions } from 'child_process';
diff --git a/package.json b/package.json
index 0bebdfa6..020a6e7d 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,6 @@
   ],
   "license": "MIT",
   "devDependencies": {
-    "@types/bluebird": "^3.5.37",
     "@types/cross-spawn": "^6.0.2",
     "@types/node": "^18.11.8",
     "@types/prismjs": "^1.26.0",
@@ -53,7 +52,6 @@
     "typescript": "^4.8.4"
   },
   "dependencies": {
-    "bluebird": "^3.7.2",
     "camel-case": "^4.1.2",
     "cross-spawn": "^7.0.3",
     "deepmerge": "^4.2.2",