diff --git a/package-lock.json b/package-lock.json
index 48a6c0f..22dc9e5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -29,7 +29,7 @@
                 "@types/mocha": "^10.0.1",
                 "@types/node": "^20.3.1",
                 "@types/sinon": "^17.0.2",
-                "@types/sinon-chai": "^3.2.12",
+                "@types/sinon-chai": "^4.0.0",
                 "chai": "^4.3.7",
                 "dweb-api-types": "^1.0.0",
                 "mocha": "^10.2.0",
@@ -37,7 +37,7 @@
                 "nyc": "^17.0.0",
                 "prettier": "^3.1.0",
                 "sinon": "^18.0.1",
-                "sinon-chai": "^3.7.0",
+                "sinon-chai": "^4.0.1",
                 "ts-mocha": "^10.0.0",
                 "ts-node": "^10.9.1",
                 "tsx": "^4.6.1",
@@ -5833,9 +5833,9 @@
             }
         },
         "node_modules/@types/sinon-chai": {
-            "version": "3.2.12",
-            "resolved": "https://registry.npmjs.org/@types/sinon-chai/-/sinon-chai-3.2.12.tgz",
-            "integrity": "sha512-9y0Gflk3b0+NhQZ/oxGtaAJDvRywCa5sIyaVnounqLvmf93yBF4EgIRspePtkMs3Tr844nCclYMlcCNmLCvjuQ==",
+            "version": "4.0.0",
+            "resolved": "https://registry.npmjs.org/@types/sinon-chai/-/sinon-chai-4.0.0.tgz",
+            "integrity": "sha512-Uar+qk3TmeFsUWCwtqRNqNUE7vf34+MCJiQJR5M2rd4nCbhtE8RgTiHwN/mVwbfCjhmO6DiOel/MgzHkRMJJFg==",
             "dev": true,
             "license": "MIT",
             "dependencies": {
@@ -15779,13 +15779,13 @@
             }
         },
         "node_modules/sinon-chai": {
-            "version": "3.7.0",
-            "resolved": "https://registry.npmjs.org/sinon-chai/-/sinon-chai-3.7.0.tgz",
-            "integrity": "sha512-mf5NURdUaSdnatJx3uhoBOrY9dtL19fiOtAdT1Azxg3+lNJFiuN0uzaU3xX1LeAfL17kHQhTAJgpsfhbMJMY2g==",
+            "version": "4.0.1",
+            "resolved": "https://registry.npmjs.org/sinon-chai/-/sinon-chai-4.0.1.tgz",
+            "integrity": "sha512-xMKEEV3cYHC1G+boyr7QEqi80gHznYsxVdC9CdjP5JnCWz/jPGuXQzJz3PtBcb0CcHAxar15Y5sjLBoAs6a0yA==",
             "dev": true,
             "license": "(BSD-2-Clause OR WTFPL)",
             "peerDependencies": {
-                "chai": "^4.0.0",
+                "chai": "^5.0.0 || ^6.0.0",
                 "sinon": ">=4.0.0"
             }
         },
@@ -18272,13 +18272,13 @@
                 "@types/mocha": "^10.0.1",
                 "@types/node": "^20.3.1",
                 "@types/sinon": "^17.0.2",
-                "@types/sinon-chai": "^3.2.12",
+                "@types/sinon-chai": "^4.0.0",
                 "chai": "^4.3.7",
                 "mocha": "^10.2.0",
                 "nodemon": "^3.0.1",
                 "prettier": "^3.1.0",
                 "sinon": "^18.0.1",
-                "sinon-chai": "^3.7.0",
+                "sinon-chai": "^4.0.1",
                 "ts-mocha": "^10.0.0",
                 "ts-node": "^10.9.1",
                 "tsx": "^4.6.1",
diff --git a/package.json b/package.json
index 1f7cc26..ab91651 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
         "@types/mocha": "^10.0.1",
         "@types/node": "^20.3.1",
         "@types/sinon": "^17.0.2",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon-chai": "^4.0.0",
         "chai": "^4.3.7",
         "dweb-api-types": "^1.0.0",
         "mocha": "^10.2.0",
@@ -38,7 +38,7 @@
         "nyc": "^17.0.0",
         "prettier": "^3.1.0",
         "sinon": "^18.0.1",
-        "sinon-chai": "^3.7.0",
+        "sinon-chai": "^4.0.1",
         "ts-mocha": "^10.0.0",
         "ts-node": "^10.9.1",
         "tsx": "^4.6.1",
diff --git a/packages/dweb-api-resolver/package.json b/packages/dweb-api-resolver/package.json
index 63ef7ec..0e1b14f 100644
--- a/packages/dweb-api-resolver/package.json
+++ b/packages/dweb-api-resolver/package.json
@@ -23,13 +23,13 @@
         "@types/mocha": "^10.0.1",
         "@types/node": "^20.3.1",
         "@types/sinon": "^17.0.2",
-        "@types/sinon-chai": "^3.2.12",
+        "@types/sinon-chai": "^4.0.0",
         "chai": "^4.3.7",
         "mocha": "^10.2.0",
         "nodemon": "^3.0.1",
         "prettier": "^3.1.0",
         "sinon": "^18.0.1",
-        "sinon-chai": "^3.7.0",
+        "sinon-chai": "^4.0.1",
         "ts-mocha": "^10.0.0",
         "ts-node": "^10.9.1",
         "tsx": "^4.6.1",