diff --git a/package-lock.json b/package-lock.json
index 9b61e9e..3117cda 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,7 +13,7 @@
         "@govtechsg/open-attestation": "^6.5.1",
         "debug": "^4.3.1",
         "node-fetch": "^2.6.1",
-        "runtypes": "^6.3.0"
+        "runtypes": "^6.7.0"
       },
       "devDependencies": {
         "@babel/cli": "^7.13.16",
@@ -21061,9 +21061,9 @@
       "dev": true
     },
     "node_modules/runtypes": {
-      "version": "6.6.0",
-      "resolved": "https://registry.npmjs.org/runtypes/-/runtypes-6.6.0.tgz",
-      "integrity": "sha512-ddM7sgB3fyboDlBzEYFQ04L674sKjbs4GyW2W32N/5Ae47NRd/GyMASPC2PFw8drPHYGEcZ0mZ26r5RcB8msfQ=="
+      "version": "6.7.0",
+      "resolved": "https://registry.npmjs.org/runtypes/-/runtypes-6.7.0.tgz",
+      "integrity": "sha512-3TLdfFX8YHNFOhwHrSJza6uxVBmBrEjnNQlNXvXCdItS0Pdskfg5vVXUTWIN+Y23QR09jWpSl99UHkA83m4uWA=="
     },
     "node_modules/rx-lite": {
       "version": "3.1.2",
@@ -41293,9 +41293,9 @@
       "dev": true
     },
     "runtypes": {
-      "version": "6.6.0",
-      "resolved": "https://registry.npmjs.org/runtypes/-/runtypes-6.6.0.tgz",
-      "integrity": "sha512-ddM7sgB3fyboDlBzEYFQ04L674sKjbs4GyW2W32N/5Ae47NRd/GyMASPC2PFw8drPHYGEcZ0mZ26r5RcB8msfQ=="
+      "version": "6.7.0",
+      "resolved": "https://registry.npmjs.org/runtypes/-/runtypes-6.7.0.tgz",
+      "integrity": "sha512-3TLdfFX8YHNFOhwHrSJza6uxVBmBrEjnNQlNXvXCdItS0Pdskfg5vVXUTWIN+Y23QR09jWpSl99UHkA83m4uWA=="
     },
     "rx-lite": {
       "version": "3.1.2",
diff --git a/package.json b/package.json
index ddecb5f..5dc3183 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "@govtechsg/open-attestation": "^6.5.1",
     "debug": "^4.3.1",
     "node-fetch": "^2.6.1",
-    "runtypes": "^6.3.0"
+    "runtypes": "^6.7.0"
   },
   "devDependencies": {
     "@babel/cli": "^7.13.16",