diff --git a/packages/oo7-substrate/package.json b/packages/oo7-substrate/package.json
index bd24eba..d2fafec 100644
--- a/packages/oo7-substrate/package.json
+++ b/packages/oo7-substrate/package.json
@@ -24,7 +24,7 @@
   "homepage": "https://github.com/paritytech/oo7/tree/master/packages/oo7-substrate#readme",
   "dependencies": {
     "@polkadot/util": "^0.41.1",
-    "@polkadot/wasm-crypto": "^0.5.1",
+    "@polkadot/wasm-crypto": "^0.13.1",
     "@polkadot/wasm-schnorrkel": "^0.3.1",
     "base-x": "^3.0.4",
     "bip39": "^2.5.0",
diff --git a/packages/oo7-substrate/yarn.lock b/packages/oo7-substrate/yarn.lock
index 8c3f3eb..3a4b3fd 100644
--- a/packages/oo7-substrate/yarn.lock
+++ b/packages/oo7-substrate/yarn.lock
@@ -24,10 +24,10 @@
     ip-regex "^4.0.0"
     moment "^2.24.0"
 
-"@polkadot/wasm-crypto@^0.5.1":
-  version "0.5.1"
-  resolved "https://registry.yarnpkg.com/@polkadot/wasm-crypto/-/wasm-crypto-0.5.1.tgz#3d5734d6dc2f5174a411689f78538287d21bd710"
-  integrity sha512-8h7uz85bvLVirtbxLkELr9H25oqAfgnQuDP6FP3QJeag7VfMtVvRF5U2JWGgsiUSiRg+UJnTuCleOSDnageRmg==
+"@polkadot/wasm-crypto@^0.13.1":
+  version "0.13.1"
+  resolved "https://registry.yarnpkg.com/@polkadot/wasm-crypto/-/wasm-crypto-0.13.1.tgz#602305b2ca86fc320a35ce820835e0e2dd9e646e"
+  integrity sha512-24a63FynhyBHEGxqoDMZHAcaSxJqnjBPnEcmXXYCN2lI7b4iKaJKF2t+/FUmY7XTST+xNgFTJZ7A/o8jjgC/mA==
 
 "@polkadot/wasm-schnorrkel@^0.3.1":
   version "0.3.1"