diff --git a/packages/floodsub/package.json b/packages/floodsub/package.json
index 9156018309..e912239b03 100644
--- a/packages/floodsub/package.json
+++ b/packages/floodsub/package.json
@@ -70,7 +70,7 @@
   "devDependencies": {
     "@libp2p/logger": "^6.2.2",
     "@multiformats/multiaddr": "^13.0.1",
-    "@types/sinon": "^20.0.0",
+    "@types/sinon": "^21.0.0",
     "aegir": "^47.0.22",
     "delay": "^7.0.0",
     "p-wait-for": "^6.0.0",
diff --git a/packages/gossipsub/package.json b/packages/gossipsub/package.json
index 40aa7f8b8a..796096aeaf 100644
--- a/packages/gossipsub/package.json
+++ b/packages/gossipsub/package.json
@@ -94,7 +94,7 @@
     "@libp2p/logger": "^6.2.2",
     "@libp2p/peer-store": "^12.0.9",
     "@types/node": "^22.18.1",
-    "@types/sinon": "^20.0.0",
+    "@types/sinon": "^21.0.0",
     "abortable-iterator": "^5.1.0",
     "aegir": "^47.0.21",
     "datastore-core": "^11.0.1",
diff --git a/packages/kad-dht/package.json b/packages/kad-dht/package.json
index 3fc7311bd2..64e24952a1 100644
--- a/packages/kad-dht/package.json
+++ b/packages/kad-dht/package.json
@@ -84,7 +84,7 @@
     "@libp2p/peer-store": "^12.0.9",
     "@types/lodash.random": "^3.2.9",
     "@types/lodash.range": "^3.2.9",
-    "@types/sinon": "^20.0.0",
+    "@types/sinon": "^21.0.0",
     "@types/which": "^3.0.4",
     "aegir": "^47.0.22",
     "benchmark": "^2.1.4",
diff --git a/packages/peer-collections/package.json b/packages/peer-collections/package.json
index bc68e87501..e000ebc128 100644
--- a/packages/peer-collections/package.json
+++ b/packages/peer-collections/package.json
@@ -54,7 +54,7 @@
   },
   "devDependencies": {
     "@libp2p/crypto": "^5.1.13",
-    "@types/sinon": "^20.0.0",
+    "@types/sinon": "^21.0.0",
     "aegir": "^47.0.22",
     "sinon": "^21.0.0",
     "sinon-ts": "^2.0.0"
diff --git a/packages/peer-store/package.json b/packages/peer-store/package.json
index 787b6a61eb..838ef39ab9 100644
--- a/packages/peer-store/package.json
+++ b/packages/peer-store/package.json
@@ -65,7 +65,7 @@
   },
   "devDependencies": {
     "@libp2p/logger": "^6.2.2",
-    "@types/sinon": "^20.0.0",
+    "@types/sinon": "^21.0.0",
     "aegir": "^47.0.22",
     "benchmark": "^2.1.4",
     "datastore-core": "^11.0.1",
diff --git a/packages/transport-memory/package.json b/packages/transport-memory/package.json
index 65d0037123..bf260f3857 100644
--- a/packages/transport-memory/package.json
+++ b/packages/transport-memory/package.json
@@ -48,7 +48,7 @@
     "@libp2p/utils": "^7.0.9",
     "@multiformats/multiaddr": "^13.0.1",
     "@multiformats/multiaddr-matcher": "^3.0.1",
-    "@types/sinon": "^20.0.0",
+    "@types/sinon": "^21.0.0",
     "delay": "^7.0.0",
     "it-map": "^3.1.4",
     "it-pushable": "^3.2.3",
diff --git a/packages/transport-tcp/package.json b/packages/transport-tcp/package.json
index eb35c9c8e3..80c90e45f7 100644
--- a/packages/transport-tcp/package.json
+++ b/packages/transport-tcp/package.json
@@ -57,7 +57,7 @@
     "@libp2p/utils": "^7.0.9",
     "@multiformats/multiaddr": "^13.0.1",
     "@multiformats/multiaddr-matcher": "^3.0.1",
-    "@types/sinon": "^20.0.0",
+    "@types/sinon": "^21.0.0",
     "main-event": "^1.0.1",
     "p-event": "^7.0.0",
     "progress-events": "^1.0.1",
diff --git a/packages/transport-webrtc/package.json b/packages/transport-webrtc/package.json
index 79f1d9aca3..db04f73e3a 100644
--- a/packages/transport-webrtc/package.json
+++ b/packages/transport-webrtc/package.json
@@ -80,7 +80,7 @@
   },
   "devDependencies": {
     "@libp2p/logger": "^6.2.2",
-    "@types/sinon": "^20.0.0",
+    "@types/sinon": "^21.0.0",
     "aegir": "^47.0.22",
     "any-signal": "^4.1.1",
     "datastore-core": "^11.0.1",