diff --git a/ghost/magic-link/package.json b/ghost/magic-link/package.json
index cc50467e3f..14cbf91fdb 100644
--- a/ghost/magic-link/package.json
+++ b/ghost/magic-link/package.json
@@ -22,9 +22,9 @@
     "@types/jsonwebtoken": "8.5.1",
     "@types/node": "14.17.0",
     "@types/nodemailer": "6.4.1",
-    "mocha": "6.2.3",
+    "mocha": "9.0.2",
     "should": "13.2.3",
-    "sinon": "7.5.0"
+    "sinon": "11.1.1"
   },
   "dependencies": {
     "bluebird": "^3.5.5",
diff --git a/ghost/members-api/package.json b/ghost/members-api/package.json
index c99bba172a..26e2a68b6f 100644
--- a/ghost/members-api/package.json
+++ b/ghost/members-api/package.json
@@ -18,10 +18,10 @@
   ],
   "devDependencies": {
     "@types/node-jose": "1.1.6",
-    "mocha": "6.2.3",
+    "mocha": "9.0.2",
     "nock": "13.1.0",
     "should": "13.2.3",
-    "sinon": "7.5.0"
+    "sinon": "11.1.1"
   },
   "dependencies": {
     "@tryghost/debug": "^0.1.2",
diff --git a/ghost/members-csv/package.json b/ghost/members-csv/package.json
index e7edbf82f8..e4b03b4e70 100644
--- a/ghost/members-csv/package.json
+++ b/ghost/members-csv/package.json
@@ -19,9 +19,9 @@
     "access": "public"
   },
   "devDependencies": {
-    "mocha": "8.4.0",
+    "mocha": "9.0.2",
     "should": "13.2.3",
-    "sinon": "9.2.4"
+    "sinon": "11.1.1"
   },
   "dependencies": {
     "bluebird": "^3.7.2",
diff --git a/ghost/members-ssr/package.json b/ghost/members-ssr/package.json
index d83f7472fa..d0694aa702 100644
--- a/ghost/members-ssr/package.json
+++ b/ghost/members-ssr/package.json
@@ -19,9 +19,9 @@
     "@types/cookies": "0.7.6",
     "@types/node": "14.17.0",
     "keypair": "1.0.3",
-    "mocha": "6.2.3",
+    "mocha": "9.0.2",
     "should": "13.2.3",
-    "sinon": "7.5.0"
+    "sinon": "11.1.1"
   },
   "dependencies": {
     "@tryghost/debug": "^0.1.2",