diff --git a/ghost/custom-theme-settings-service/package.json b/ghost/custom-theme-settings-service/package.json
index 67233a4e13..5102e88986 100644
--- a/ghost/custom-theme-settings-service/package.json
+++ b/ghost/custom-theme-settings-service/package.json
@@ -23,7 +23,7 @@
     "c8": "7.11.0",
     "mocha": "9.1.4",
     "should": "13.2.3",
-    "sinon": "11.1.2"
+    "sinon": "12.0.1"
   },
   "dependencies": {
     "@tryghost/debug": "^0.1.5",
diff --git a/ghost/email-analytics-provider-mailgun/package.json b/ghost/email-analytics-provider-mailgun/package.json
index cf9b2c4f99..2ed28db44e 100644
--- a/ghost/email-analytics-provider-mailgun/package.json
+++ b/ghost/email-analytics-provider-mailgun/package.json
@@ -22,7 +22,7 @@
     "mocha": "9.1.4",
     "nock": "13.2.2",
     "should": "13.2.3",
-    "sinon": "11.1.2"
+    "sinon": "12.0.1"
   },
   "dependencies": {
     "@tryghost/email-analytics-service": "^1.0.5",
diff --git a/ghost/email-analytics-service/package.json b/ghost/email-analytics-service/package.json
index c7b457f2eb..488bcc5b5f 100644
--- a/ghost/email-analytics-service/package.json
+++ b/ghost/email-analytics-service/package.json
@@ -21,7 +21,7 @@
   "devDependencies": {
     "mocha": "9.1.4",
     "should": "13.2.3",
-    "sinon": "11.1.2"
+    "sinon": "12.0.1"
   },
   "dependencies": {
     "@tryghost/debug": "^0.1.9",