diff --git a/package-lock.json b/package-lock.json
index 01b66be..2faa23c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "license": "ISC",
       "dependencies": {
         "@govtechsg/oa-encryption": "^1.3.5",
-        "@govtechsg/open-attestation": "^6.9.0",
+        "@govtechsg/open-attestation": "^6.9.5",
         "@govtechsg/opencerts-verify": "^3.1.3",
         "@middy/core": "^5.1.0",
         "@middy/http-cors": "^5.1.0",
@@ -3503,16 +3503,20 @@
       }
     },
     "node_modules/@govtechsg/open-attestation": {
-      "version": "6.9.3",
-      "resolved": "https://registry.npmjs.org/@govtechsg/open-attestation/-/open-attestation-6.9.3.tgz",
-      "integrity": "sha512-tBF1RCehXsINoIyBScXQ9YZYg18pQuSyqXkTv1vtjyjbXse9eebuJ7xahE88D4KFPfuFub1GBtXknOonFD+nQg==",
+      "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",
diff --git a/package.json b/package.json
index 465b13f..1f243f2 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
   "license": "ISC",
   "dependencies": {
     "@govtechsg/oa-encryption": "^1.3.5",
-    "@govtechsg/open-attestation": "^6.9.0",
+    "@govtechsg/open-attestation": "^6.9.5",
     "@govtechsg/opencerts-verify": "^3.1.3",
     "@middy/core": "^5.1.0",
     "@middy/http-cors": "^5.1.0",