diff --git a/packages/oo7-substrate/package.json b/packages/oo7-substrate/package.json
index bd24eba..c4eff59 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": "^0.11.1",
     "@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 1a0f5ac..7311e90 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@^0.11.1":
+  version "0.11.1"
+  resolved "https://registry.yarnpkg.com/@polkadot/wasm-crypto/-/wasm-crypto-0.11.1.tgz#5f5544659a81b5706e757577f880001de21cd298"
+  integrity sha512-zd4p5UjsUlr4oW/5IWKEODHX7VKa6dc94oD8WJSr7++f+UGxSpF84qW+h+16uMDhU5PbHqq31dv1w73cr+KP4Q==
 
 "@polkadot/wasm-schnorrkel@^0.3.1":
   version "0.3.1"
@@ -522,6 +522,11 @@ once@^1.3.0:
   dependencies:
     wrappy "1"
 
+oo7@^0.7.12:
+  version "0.7.12"
+  resolved "https://registry.yarnpkg.com/oo7/-/oo7-0.7.12.tgz#bd7a01ba4e815c1fcde9bea2a9a8226d06ec781e"
+  integrity sha512-nVmxwLIiVCY4Aid6/+p2ujJ2mj3yh15zQ3xSl3UPui7U37DJJfD0KmuMjp+XOWH1HxTkKhIKDgR34eEhFHNxgA==
+
 param-case@^2.1.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/param-case/-/param-case-2.1.1.tgz#df94fd8cf6531ecf75e6bef9a0858fbc72be2247"