diff --git a/packages/proto-signing/package.json b/packages/proto-signing/package.json
index 7889abb5b7..d20eb13e41 100644
--- a/packages/proto-signing/package.json
+++ b/packages/proto-signing/package.json
@@ -54,6 +54,7 @@
   },
   "devDependencies": {
     "@cosmjs/encoding": "^0.24.0-alpha.22",
-    "@cosmjs/utils": "^0.24.0-alpha.22"
+    "@cosmjs/utils": "^0.24.0-alpha.22",
+    "ts-proto": "^1.41.1"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 0c7cd8e22c..7b519c8046 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1495,6 +1495,11 @@
   resolved "https://registry.yarnpkg.com/@types/normalize-package-data/-/normalize-package-data-2.4.0.tgz#e486d0d97396d79beedd0a6e33f4534ff6b4973e"
   integrity sha512-f5j5b/Gf71L+dbqxIpQ4Z2WlmI/mPJ0fOkGGmFgtb6sAu97EPczzbS3/tJKxmcYDj55OX6ssqwDAWOHIYDRDGA==
 
+"@types/object-hash@^1.3.0":
+  version "1.3.4"
+  resolved "https://registry.yarnpkg.com/@types/object-hash/-/object-hash-1.3.4.tgz#079ba142be65833293673254831b5e3e847fe58b"
+  integrity sha512-xFdpkAkikBgqBdG9vIlsqffDV8GpvnPEzs0IUtr1v3BEB97ijsFQ4RXVbUZwjFThhB4MDSTUfvmxUD5PGx0wXA==
+
 "@types/pako@^1.0.1":
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/@types/pako/-/pako-1.0.1.tgz#33b237f3c9aff44d0f82fe63acffa4a365ef4a61"
@@ -3179,6 +3184,11 @@ dashdash@^1.12.0:
   dependencies:
     assert-plus "^1.0.0"
 
+dataloader@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/dataloader/-/dataloader-1.4.0.tgz#bca11d867f5d3f1b9ed9f737bd15970c65dff5c8"
+  integrity sha512-68s5jYdlvasItOJnCuI2Q9s4q98g0pCyL3HrcKJu8KNugUl8ahgmZYg38ysLTgQjjXX3H8CJLkAvWrclWfcalw==
+
 date-format@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/date-format/-/date-format-2.1.0.tgz#31d5b5ea211cf5fd764cd38baf9d033df7e125cf"
@@ -6586,6 +6596,11 @@ object-copy@^0.1.0:
     define-property "^0.2.5"
     kind-of "^3.0.3"
 
+object-hash@^1.3.1:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/object-hash/-/object-hash-1.3.1.tgz#fde452098a951cb145f039bb7d455449ddc126df"
+  integrity sha512-OSuu/pU4ENM9kmREg0BdNrUDIl1heYa4mBZacJc+vVWz4GtAwu7jO8s4AIt2aGRUTqxykpWzI3Oqnsm13tTMDA==
+
 object-inspect@^1.7.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/object-inspect/-/object-inspect-1.7.0.tgz#f4f6bd181ad77f006b5ece60bd0b6f398ff74a67"
@@ -8722,6 +8737,11 @@ trim-off-newlines@^1.0.0:
   resolved "https://registry.yarnpkg.com/trim-off-newlines/-/trim-off-newlines-1.0.1.tgz#9f9ba9d9efa8764c387698bcbfeb2c848f11adb3"
   integrity sha1-n5up2e+odkw4dpi8v+sshI8RrbM=
 
+ts-imm@0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/ts-imm/-/ts-imm-0.4.0.tgz#01a7916dd1b214ab3c578403ff0cc1faafc282da"
+  integrity sha512-slzrsTGPwoEQFTr8N9A2ZcqRLu0U3+aFpCwFtDOVmjD2b9AGSzYnHJQVDVP54kmoSD1BIM3bLN2VeOkFpu7Ycw==
+
 ts-node@^8:
   version "8.7.0"
   resolved "https://registry.yarnpkg.com/ts-node/-/ts-node-8.7.0.tgz#266186947596bef9f3a034687595b30e31b20976"
@@ -8733,6 +8753,25 @@ ts-node@^8:
     source-map-support "^0.5.6"
     yn "3.1.1"
 
+ts-poet@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/ts-poet/-/ts-poet-1.0.1.tgz#7dcba4fda3666dda0b72fcd1ea7b1d4cf48310c9"
+  integrity sha512-wGzYjiNKtDZqC5CXCAxwxhR0d/MJYIVvV5H+C2I2ntwK5HcFtoLNTSwfrXo0asO5WtBJ4upULCCAM02NYX7eUg==
+  dependencies:
+    lodash "^4.17.15"
+    ts-imm "0.4.0"
+
+ts-proto@^1.41.1:
+  version "1.41.1"
+  resolved "https://registry.yarnpkg.com/ts-proto/-/ts-proto-1.41.1.tgz#c23df0dc54551e4d0e932e9843e62d09d7e44e15"
+  integrity sha512-Acf2nKIjBVn2ANAFkHgWdpnfswgwRSWc1iiKtORv7v0vNsWNzPJ6PmOxGDI0WOyKxzqAPwuUYt83K/4sSn0o6A==
+  dependencies:
+    "@types/object-hash" "^1.3.0"
+    dataloader "^1.4.0"
+    object-hash "^1.3.1"
+    protobufjs "^6.8.8"
+    ts-poet "^1.0.1"
+
 tsconfig-paths@^3.9.0:
   version "3.9.0"
   resolved "https://registry.yarnpkg.com/tsconfig-paths/-/tsconfig-paths-3.9.0.tgz#098547a6c4448807e8fcb8eae081064ee9a3c90b"