diff --git a/package-lock.json b/package-lock.json
index f59fb20..6e84b79 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -20,7 +20,7 @@
         "mysql2": "^3.7.0",
         "nodemon": "^3.0.2",
         "sequelize": "^6.35.2",
-        "sinon": "^17.0.1",
+        "sinon": "^19.0.0",
         "stripe": "^14.13.0"
       }
     },
@@ -61,32 +61,45 @@
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-3.0.1.tgz",
       "integrity": "sha512-K3mCHKQ9sVh8o1C9cxkwxaOmXoAMlDxC1mYyHrjqOWEcBjYr76t96zL2zlj5dUGZ3HSw240X1qgH3Mjf1yJWpQ==",
+      "license": "BSD-3-Clause",
       "dependencies": {
         "type-detect": "4.0.8"
       }
     },
+    "node_modules/@sinonjs/fake-timers": {
+      "version": "13.0.1",
+      "resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-13.0.1.tgz",
+      "integrity": "sha512-ZEbLYOvZQHccQJzbg2E5r+/Mdjb6BMdjToL4r8WwUw0VTjTnyY3gCnwLeiovcXI3/Uo25exmqmiwsjL/eE/rSg==",
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "@sinonjs/commons": "^3.0.1"
+      }
+    },
     "node_modules/@sinonjs/samsam": {
-      "version": "8.0.0",
-      "resolved": "https://registry.npmjs.org/@sinonjs/samsam/-/samsam-8.0.0.tgz",
-      "integrity": "sha512-Bp8KUVlLp8ibJZrnvq2foVhP0IVX2CIprMJPK0vqGqgrDa0OHVKeZyBykqskkrdxV6yKBPmGasO8LVjAKR3Gew==",
+      "version": "8.0.2",
+      "resolved": "https://registry.npmjs.org/@sinonjs/samsam/-/samsam-8.0.2.tgz",
+      "integrity": "sha512-v46t/fwnhejRSFTGqbpn9u+LQ9xJDse10gNnPgAcxgdoCDMXj/G2asWAC/8Qs+BAZDicX+MNZouXT1A7c83kVw==",
+      "license": "BSD-3-Clause",
       "dependencies": {
-        "@sinonjs/commons": "^2.0.0",
+        "@sinonjs/commons": "^3.0.1",
         "lodash.get": "^4.4.2",
-        "type-detect": "^4.0.8"
+        "type-detect": "^4.1.0"
       }
     },
-    "node_modules/@sinonjs/samsam/node_modules/@sinonjs/commons": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-2.0.0.tgz",
-      "integrity": "sha512-uLa0j859mMrg2slwQYdO/AkrOfmH+X6LTVmNTS9CqexuE2IvVORIkSpJLqePAbEnKJ77aMmCwr1NUZ57120Xcg==",
-      "dependencies": {
-        "type-detect": "4.0.8"
+    "node_modules/@sinonjs/samsam/node_modules/type-detect": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.1.0.tgz",
+      "integrity": "sha512-Acylog8/luQ8L7il+geoSxhEkazvkslg7PSNKOX59mbB9cOveP5aq9h74Y7YU8yDpJwetzQQrfIwtf4Wp4LKcw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=4"
       }
     },
     "node_modules/@sinonjs/text-encoding": {
-      "version": "0.7.2",
-      "resolved": "https://registry.npmjs.org/@sinonjs/text-encoding/-/text-encoding-0.7.2.tgz",
-      "integrity": "sha512-sXXKG+uL9IrKqViTtao2Ws6dy0znu9sOaP1di/jKGW1M6VssO8vlpXCQcpZ+jisQ1tTFAC5Jo/EOzFbggBagFQ=="
+      "version": "0.7.3",
+      "resolved": "https://registry.npmjs.org/@sinonjs/text-encoding/-/text-encoding-0.7.3.tgz",
+      "integrity": "sha512-DE427ROAphMQzU4ENbliGYrBSYPXF+TtLg9S8vzeA+OF4ZKzoDdzfL8sxuMUGS/lgRhM6j1URSk9ghf7Xo1tyA==",
+      "license": "(Unlicense OR Apache-2.0)"
     },
     "node_modules/@types/debug": {
       "version": "4.1.12",
@@ -1192,7 +1205,8 @@
     "node_modules/just-extend": {
       "version": "6.2.0",
       "resolved": "https://registry.npmjs.org/just-extend/-/just-extend-6.2.0.tgz",
-      "integrity": "sha512-cYofQu2Xpom82S6qD778jBDpwvvy39s1l/hrYij2u9AMdQcGRpaBu6kY4mVhuno5kJVi1DAz4aiphA2WI1/OAw=="
+      "integrity": "sha512-cYofQu2Xpom82S6qD778jBDpwvvy39s1l/hrYij2u9AMdQcGRpaBu6kY4mVhuno5kJVi1DAz4aiphA2WI1/OAw==",
+      "license": "MIT"
     },
     "node_modules/jwa": {
       "version": "1.4.1",
@@ -1221,7 +1235,8 @@
     "node_modules/lodash.get": {
       "version": "4.4.2",
       "resolved": "https://registry.npmjs.org/lodash.get/-/lodash.get-4.4.2.tgz",
-      "integrity": "sha512-z+Uw/vLuy6gQe8cfaFWD7p0wVv8fJl3mbzXh33RS+0oW2wvUqiRXiQ69gLWSLpgB5/6sU+r6BlQR0MBILadqTQ=="
+      "integrity": "sha512-z+Uw/vLuy6gQe8cfaFWD7p0wVv8fJl3mbzXh33RS+0oW2wvUqiRXiQ69gLWSLpgB5/6sU+r6BlQR0MBILadqTQ==",
+      "license": "MIT"
     },
     "node_modules/lodash.includes": {
       "version": "4.3.0",
@@ -1724,29 +1739,26 @@
       }
     },
     "node_modules/nise": {
-      "version": "5.1.7",
-      "resolved": "https://registry.npmjs.org/nise/-/nise-5.1.7.tgz",
-      "integrity": "sha512-wWtNUhkT7k58uvWTB/Gy26eA/EJKtPZFVAhEilN5UYVmmGRYOURbejRUyKm0Uu9XVEW7K5nBOZfR8VMB4QR2RQ==",
-      "dependencies": {
-        "@sinonjs/commons": "^3.0.0",
-        "@sinonjs/fake-timers": "^11.2.2",
-        "@sinonjs/text-encoding": "^0.7.2",
+      "version": "6.1.1",
+      "resolved": "https://registry.npmjs.org/nise/-/nise-6.1.1.tgz",
+      "integrity": "sha512-aMSAzLVY7LyeM60gvBS423nBmIPP+Wy7St7hsb+8/fc1HmeoHJfLO8CKse4u3BtOZvQLJghYPI2i/1WZrEj5/g==",
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "@sinonjs/commons": "^3.0.1",
+        "@sinonjs/fake-timers": "^13.0.1",
+        "@sinonjs/text-encoding": "^0.7.3",
         "just-extend": "^6.2.0",
-        "path-to-regexp": "^6.2.1"
-      }
-    },
-    "node_modules/nise/node_modules/@sinonjs/fake-timers": {
-      "version": "11.2.2",
-      "resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-11.2.2.tgz",
-      "integrity": "sha512-G2piCSxQ7oWOxwGSAyFHfPIsyeJGXYtc6mFbnFA+kRXkiEnTl8c/8jul2S329iFBnDI9HGoeWWAZvuvOkZccgw==",
-      "dependencies": {
-        "@sinonjs/commons": "^3.0.0"
+        "path-to-regexp": "^8.1.0"
       }
     },
     "node_modules/nise/node_modules/path-to-regexp": {
-      "version": "6.2.1",
-      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-6.2.1.tgz",
-      "integrity": "sha512-JLyh7xT1kizaEvcaXOQwOc2/Yhw6KZOvPf1S8401UyLk86CU79LN3vl7ztXGm/pZ+YjoyAJ4rxmHwbkBXJX+yw=="
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-8.1.0.tgz",
+      "integrity": "sha512-Bqn3vc8CMHty6zuD+tG23s6v2kwxslHEhTj4eYaVKGIEB+YX/2wd0/rgXLFD9G9id9KCtbVy/3ZgmvZjpa0UdQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=16"
+      }
     },
     "node_modules/node-addon-api": {
       "version": "5.1.0",
@@ -2275,15 +2287,16 @@
       }
     },
     "node_modules/sinon": {
-      "version": "17.0.1",
-      "resolved": "https://registry.npmjs.org/sinon/-/sinon-17.0.1.tgz",
-      "integrity": "sha512-wmwE19Lie0MLT+ZYNpDymasPHUKTaZHUH/pKEubRXIzySv9Atnlw+BUMGCzWgV7b7wO+Hw6f1TEOr0IUnmU8/g==",
-      "dependencies": {
-        "@sinonjs/commons": "^3.0.0",
-        "@sinonjs/fake-timers": "^11.2.2",
-        "@sinonjs/samsam": "^8.0.0",
-        "diff": "^5.1.0",
-        "nise": "^5.1.5",
+      "version": "19.0.0",
+      "resolved": "https://registry.npmjs.org/sinon/-/sinon-19.0.0.tgz",
+      "integrity": "sha512-YwPCB6NgZDam4hsEWe0mzTNbtKWFUtnpMSSQR+CmhWtVCkMqynwl9d7AjmfE7pPlGCXkHSi80mPHy70RTsAijg==",
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "@sinonjs/commons": "^3.0.1",
+        "@sinonjs/fake-timers": "13.0.1",
+        "@sinonjs/samsam": "^8.0.1",
+        "diff": "^7.0.0",
+        "nise": "^6.1.0",
         "supports-color": "^7.2.0"
       },
       "funding": {
@@ -2291,18 +2304,11 @@
         "url": "https://opencollective.com/sinon"
       }
     },
-    "node_modules/sinon/node_modules/@sinonjs/fake-timers": {
-      "version": "11.2.2",
-      "resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-11.2.2.tgz",
-      "integrity": "sha512-G2piCSxQ7oWOxwGSAyFHfPIsyeJGXYtc6mFbnFA+kRXkiEnTl8c/8jul2S329iFBnDI9HGoeWWAZvuvOkZccgw==",
-      "dependencies": {
-        "@sinonjs/commons": "^3.0.0"
-      }
-    },
     "node_modules/sinon/node_modules/diff": {
-      "version": "5.1.0",
-      "resolved": "https://registry.npmjs.org/diff/-/diff-5.1.0.tgz",
-      "integrity": "sha512-D+mk+qE8VC/PAUrlAU34N+VfXev0ghe5ywmpqrawphmVZc1bEfn56uo9qpyGp1p4xpzOHkSW4ztBd6L7Xx4ACw==",
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-7.0.0.tgz",
+      "integrity": "sha512-PJWHUb1RFevKCwaFA9RlG5tCd+FO5iRh9A8HEtkmBH2Li03iJriB6m6JIN4rGz3K3JLawI7/veA1xzRKP6ISBw==",
+      "license": "BSD-3-Clause",
       "engines": {
         "node": ">=0.3.1"
       }
@@ -2468,6 +2474,7 @@
       "version": "4.0.8",
       "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
       "integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==",
+      "license": "MIT",
       "engines": {
         "node": ">=4"
       }
diff --git a/package.json b/package.json
index 8a63bed..07ee80a 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
     "mysql2": "^3.7.0",
     "nodemon": "^3.0.2",
     "sequelize": "^6.35.2",
-    "sinon": "^17.0.1",
+    "sinon": "^19.0.0",
     "stripe": "^14.13.0"
   },
   "name": "ecommerce_backend_api",