diff --git a/package.json b/package.json
index 5760ef5603..79e1c21358 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "@glint/template": "^1.4.0",
     "@glimmer/component": "^1.1.2",
     "@types/semver": "^7.5.8",
-    "bun-types": "^1.1.8",
+    "bun-types": "^1.1.20",
     "chalk": "^4.1.2",
     "co": "^4.6.0",
     "command-line-args": "^5.2.1",
diff --git a/packages/build-config/package.json b/packages/build-config/package.json
index a03b0d621e..d69a55ee7d 100644
--- a/packages/build-config/package.json
+++ b/packages/build-config/package.json
@@ -56,7 +56,7 @@
     "@babel/core": "^7.24.5",
     "pnpm-sync-dependencies-meta-injected": "0.0.14",
     "typescript": "^5.4.5",
-    "bun-types": "^1.1.8",
+    "bun-types": "^1.1.20",
     "vite": "^5.2.11"
   },
   "engines": {
diff --git a/packages/diagnostic/package.json b/packages/diagnostic/package.json
index 28ca24684a..6ab8907743 100644
--- a/packages/diagnostic/package.json
+++ b/packages/diagnostic/package.json
@@ -98,7 +98,7 @@
     "@babel/preset-typescript": "^7.24.1",
     "@babel/runtime": "^7.24.5",
     "@warp-drive/internal-config": "workspace:5.4.0-alpha.97",
-    "bun-types": "^1.1.8",
+    "bun-types": "^1.1.20",
     "@ember/test-helpers": "^3.3.0",
     "ember-source": "~5.8.0",
     "@glimmer/component": "^1.1.2",
diff --git a/packages/schema/package.json b/packages/schema/package.json
index e22e61af67..3c36d30fda 100644
--- a/packages/schema/package.json
+++ b/packages/schema/package.json
@@ -39,7 +39,7 @@
   "peerDependencies": {},
   "dependencies": {},
   "devDependencies": {
-    "bun-types": "1.1.8"
+    "bun-types": "1.1.20"
   },
   "engines": {
     "node": ">= 18.20.3"
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 08740573a1..82b5e9079e 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -63,8 +63,8 @@ importers:
         specifier: ^7.5.8
         version: 7.5.8
       bun-types:
-        specifier: ^1.1.8
-        version: 1.1.8
+        specifier: ^1.1.20
+        version: 1.1.20
       chalk:
         specifier: ^4.1.2
         version: 4.1.2
@@ -565,8 +565,8 @@ importers:
         specifier: workspace:5.4.0-alpha.97
         version: link:../../config
       bun-types:
-        specifier: ^1.1.8
-        version: 1.1.8
+        specifier: ^1.1.20
+        version: 1.1.20
       pnpm-sync-dependencies-meta-injected:
         specifier: 0.0.14
         version: 0.0.14
@@ -784,8 +784,8 @@ importers:
         specifier: workspace:5.4.0-alpha.97
         version: link:../../config
       bun-types:
-        specifier: ^1.1.8
-        version: 1.1.8
+        specifier: ^1.1.20
+        version: 1.1.20
       ember-cli-test-loader:
         specifier: ^3.1.0
         version: 3.1.0(@babel/core@7.24.5)
@@ -1538,8 +1538,8 @@ importers:
   packages/schema:
     devDependencies:
       bun-types:
-        specifier: 1.1.8
-        version: 1.1.8
+        specifier: 1.1.20
+        version: 1.1.20
 
   packages/schema-record:
     dependencies:
@@ -2926,8 +2926,8 @@ importers:
         specifier: workspace:5.4.0-alpha.97
         version: link:../../config
       bun-types:
-        specifier: ^1.1.8
-        version: 1.1.8
+        specifier: ^1.1.20
+        version: 1.1.20
       ember-auto-import:
         specifier: ^2.7.4
         version: 2.7.4(@glint/template@1.4.0)
@@ -9681,8 +9681,8 @@ packages:
       '@types/ws': 8.5.10
     dev: true
 
-  /bun-types@1.1.8:
-    resolution: {integrity: sha512-dwhfuUKSGK8hm5Llcvb5+ejRh+4mIt8ibObJVKhZBsi0ScpXmt+AlaS1eDW6uRXCHj084Qt0kIqAJ08/7ZGC9Q==}
+  /bun-types@1.1.20:
+    resolution: {integrity: sha512-2u84HciDR3E7Uc0t0AEeXHmQAWe9uzRKTz120D3silIJOQlbGIMJMJiGaM8Yx7nEvMyfV0LfSdkEGnb77AN5AA==}
     dependencies:
       '@types/node': 20.12.12
       '@types/ws': 8.5.10
diff --git a/tests/ember-data__request/package.json b/tests/ember-data__request/package.json
index 7782a6e80f..a795df2627 100644
--- a/tests/ember-data__request/package.json
+++ b/tests/ember-data__request/package.json
@@ -61,7 +61,7 @@
     "@warp-drive/diagnostic": "workspace:0.0.0-alpha.83",
     "@warp-drive/holodeck": "workspace:0.0.0-alpha.83",
     "@warp-drive/internal-config": "workspace:5.4.0-alpha.97",
-    "bun-types": "^1.1.8",
+    "bun-types": "^1.1.20",
     "ember-auto-import": "^2.7.4",
     "ember-cli": "~5.9.0",
     "ember-cli-babel": "^8.2.0",