diff --git a/packages/xen-api/package.json b/packages/xen-api/package.json
index f26f1393f..c26135477 100644
--- a/packages/xen-api/package.json
+++ b/packages/xen-api/package.json
@@ -44,7 +44,7 @@
     "make-error": "^1.3.0",
     "minimist": "^1.2.0",
     "ms": "^2.0.0",
-    "promise-toolbox": "^0.9.1",
+    "promise-toolbox": "^0.9.4",
     "pw": "0.0.4",
     "xmlrpc": "^1.3.2",
     "xo-collection": "^0.4.1"
diff --git a/packages/xen-api/yarn.lock b/packages/xen-api/yarn.lock
index 52d8df174..8b38081af 100644
--- a/packages/xen-api/yarn.lock
+++ b/packages/xen-api/yarn.lock
@@ -3016,6 +3016,12 @@ promise-toolbox@^0.9.1:
   dependencies:
     make-error "^1.2.3"
 
+promise-toolbox@^0.9.4:
+  version "0.9.4"
+  resolved "https://registry.yarnpkg.com/promise-toolbox/-/promise-toolbox-0.9.4.tgz#672fe37557eea05093f770e7e1fca64e39ae9238"
+  dependencies:
+    make-error "^1.2.3"
+
 prr@~0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/prr/-/prr-0.0.0.tgz#1a84b85908325501411853d0081ee3fa86e2926a"