diff --git a/package-lock.json b/package-lock.json
index 51994ad..791bd32 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "license": "Apache-2.0",
       "dependencies": {
         "@govtechsg/dnsprove": "^2.8.0",
-        "@govtechsg/open-attestation": "^6.9.0",
+        "@govtechsg/open-attestation": "^6.9.5",
         "axios": "^1.6.2",
         "debug": "^4.3.1",
         "did-resolver": "^4.1.0",
@@ -3385,15 +3385,20 @@
       }
     },
     "node_modules/@govtechsg/open-attestation": {
-      "version": "6.9.0",
-      "resolved": "https://registry.npmjs.org/@govtechsg/open-attestation/-/open-attestation-6.9.0.tgz",
-      "integrity": "sha512-213TWxhmboOK6FV6eBy955NX9jrPPNJXrVicTr2a4xNaQioFHjcbEY4wBq+3LjAb0xcleUCYXUFlqkXUaMYpBg==",
+      "version": "6.9.5",
+      "resolved": "https://registry.npmjs.org/@govtechsg/open-attestation/-/open-attestation-6.9.5.tgz",
+      "integrity": "sha512-idORp5t8RcV/Fz3BCl67zAX7DcuJWlwn7Wt4NsIIWWdD1K8qSsUmeLfqfTcGHqbplwQPZ2eUFIqX9mTAd9m3NA==",
       "hasInstallScript": true,
+      "license": "Apache-2.0",
       "dependencies": {
+        "@ethersproject/abstract-signer": "^5.7.0",
+        "@ethersproject/bytes": "^5.7.0",
+        "@ethersproject/logger": "^5.7.0",
+        "@ethersproject/wallet": "^5.7.0",
         "@govtechsg/jsonld": "^0.1.0",
+        "ajv-formats": "^2.1.1",
         "cross-fetch": "^3.1.5",
         "debug": "^4.3.2",
-        "ethers": "^5.7.2",
         "flatley": "^5.2.0",
         "js-base64": "^3.6.1",
         "js-sha3": "^0.8.0",
@@ -5436,7 +5441,6 @@
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       "resolved": "https://registry.npmjs.org/ajv/-/ajv-8.12.0.tgz",
       "integrity": "sha512-sRu1kpcO9yLtYxBKvqfTeh9KzZEwO3STyX1HT+4CaDzC6HpTGYhIhPIzj9XuKU7KYDwnaeh5hcOwjy1QuJzBPA==",
-      "dev": true,
       "dependencies": {
         "fast-deep-equal": "^3.1.1",
         "json-schema-traverse": "^1.0.0",
@@ -5452,7 +5456,6 @@
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/ajv-formats/-/ajv-formats-2.1.1.tgz",
       "integrity": "sha512-Wx0Kx52hxE7C18hkMEggYlEifqWZtYaRgouJor+WMdPnQyEK13vgEWyVNup7SoeeoLMsr4kf5h6dOW11I15MUA==",
-      "dev": true,
       "dependencies": {
         "ajv": "^8.0.0"
       },
@@ -9117,8 +9120,7 @@
     "node_modules/fast-deep-equal": {
       "version": "3.1.3",
       "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
-      "integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q==",
-      "dev": true
+      "integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q=="
     },
     "node_modules/fast-diff": {
       "version": "1.3.0",
@@ -12650,8 +12652,7 @@
     "node_modules/json-schema-traverse": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-1.0.0.tgz",
-      "integrity": "sha512-NM8/P9n3XjXhIZn1lLhkFaACTOURQXjWhV4BA/RnOv8xvgqtqpAX9IO4mRQxSx1Rlo4tqzeqb0sOlruaOy3dug==",
-      "dev": true
+      "integrity": "sha512-NM8/P9n3XjXhIZn1lLhkFaACTOURQXjWhV4BA/RnOv8xvgqtqpAX9IO4mRQxSx1Rlo4tqzeqb0sOlruaOy3dug=="
     },
     "node_modules/json-stable-stringify-without-jsonify": {
       "version": "1.0.1",
@@ -18401,7 +18402,6 @@
       "version": "2.3.1",
       "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.3.1.tgz",
       "integrity": "sha512-vYt7UD1U9Wg6138shLtLOvdAu+8DsC/ilFtEVHcH+wydcSpNE20AfSOduf6MkRFahL5FY7X1oU7nKVZFtfq8Fg==",
-      "dev": true,
       "engines": {
         "node": ">=6"
       }
@@ -18820,7 +18820,6 @@
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/require-from-string/-/require-from-string-2.0.2.tgz",
       "integrity": "sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw==",
-      "dev": true,
       "engines": {
         "node": ">=0.10.0"
       }
@@ -21868,7 +21867,6 @@
       "version": "4.4.1",
       "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.4.1.tgz",
       "integrity": "sha512-7rKUyy33Q1yc98pQ1DAmLtwX109F7TIfWlW1Ydo8Wl1ii1SeHieeh0HHfPeL2fMXK6z0s8ecKs9frCuLJvndBg==",
-      "dev": true,
       "dependencies": {
         "punycode": "^2.1.0"
       }
diff --git a/package.json b/package.json
index 294146a..8980cb5 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
   "license": "Apache-2.0",
   "dependencies": {
     "@govtechsg/dnsprove": "^2.8.0",
-    "@govtechsg/open-attestation": "^6.9.0",
+    "@govtechsg/open-attestation": "^6.9.5",
     "axios": "^1.6.2",
     "debug": "^4.3.1",
     "did-resolver": "^4.1.0",