diff --git a/packages/proto-signing/package.json b/packages/proto-signing/package.json
index ed5a38c1..c7e499cc 100644
--- a/packages/proto-signing/package.json
+++ b/packages/proto-signing/package.json
@@ -40,7 +40,7 @@
     "coverage": "nyc --reporter=text --reporter=lcov yarn test --quiet",
     "pack-web": "yarn build-or-skip && webpack --mode development --config webpack.web.config.js",
     "preget-proto": "rm -rf proto",
-    "get-proto": "REF=20c80cfd44a068a592148d648c50de3459fd6295 ./scripts/get-proto.sh",
+    "get-proto": "REF=v0.40.0-rc0 ./scripts/get-proto.sh",
     "predefine-proto": "./scripts/predefine-proto.sh",
     "define-proto": "./scripts/define-proto.sh",
     "postdefine-proto": "prettier --write \"src/codec/generated/codecimpl.*\""
diff --git a/packages/proto-signing/scripts/get-proto.sh b/packages/proto-signing/scripts/get-proto.sh
index dc9a4931..b9ff708c 100755
--- a/packages/proto-signing/scripts/get-proto.sh
+++ b/packages/proto-signing/scripts/get-proto.sh
@@ -9,7 +9,7 @@ ZIP_FILE="$COSMOS_DIR/tmp.zip"
 REF=${REF:-"master"}
 SUFFIX=${REF}
 
-[[ $SUFFIX =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]] && SUFFIX=${SUFFIX#v}
+[[ $SUFFIX =~ ^v[0-9]+\.[0-9]+\.[0-9]+(-.+)?$ ]] && SUFFIX=${SUFFIX#v}
 
 mkdir -p "$COSMOS_DIR"
 
diff --git a/packages/proto-signing/scripts/predefine-proto.sh b/packages/proto-signing/scripts/predefine-proto.sh
index 2676f4d7..2cc2f5b6 100755
--- a/packages/proto-signing/scripts/predefine-proto.sh
+++ b/packages/proto-signing/scripts/predefine-proto.sh
@@ -6,7 +6,6 @@ GENERATED_DIR="./tmp"
 ROOT_PROTO_DIR="./proto/cosmos/cosmos-sdk"
 COSMOS_PROTO_DIR="$ROOT_PROTO_DIR/proto/cosmos"
 TENDERMINT_PROTO_DIR="$ROOT_PROTO_DIR/third_party/proto/tendermint"
-GOOGLE_PROTO_DIR="$ROOT_PROTO_DIR/third_party/proto/google"
 
 mkdir -p "$GENERATED_DIR"
 yarn pbjs \
@@ -20,15 +19,14 @@ yarn pbjs \
   --no-verify \
   --no-convert \
   --force-long \
-  "$COSMOS_PROTO_DIR/cosmos.proto" \
-  "$COSMOS_PROTO_DIR/bank/bank.proto" \
-  "$COSMOS_PROTO_DIR/crypto/crypto.proto" \
-  "$COSMOS_PROTO_DIR/tx/tx.proto" \
-  "$COSMOS_PROTO_DIR/tx/signing/signing.proto" \
-  "$TENDERMINT_PROTO_DIR/abci/types/types.proto" \
-  "$TENDERMINT_PROTO_DIR/crypto/merkle/merkle.proto" \
-  "$TENDERMINT_PROTO_DIR/libs/kv/types.proto" \
-  "$GOOGLE_PROTO_DIR/protobuf/any.proto"
+  "$COSMOS_PROTO_DIR/bank/v1beta1/bank.proto" \
+  "$COSMOS_PROTO_DIR/bank/v1beta1/tx.proto" \
+  "$COSMOS_PROTO_DIR/base/v1beta1/coin.proto" \
+  "$COSMOS_PROTO_DIR/crypto/multisig/v1beta1/multisig.proto" \
+  "$COSMOS_PROTO_DIR/crypto/secp256k1/keys.proto" \
+  "$COSMOS_PROTO_DIR/tx/v1beta1/tx.proto" \
+  "$COSMOS_PROTO_DIR/tx/signing/v1beta1/signing.proto" \
+  "$TENDERMINT_PROTO_DIR/crypto/keys.proto"
 
 # Work around https://github.com/protobufjs/protobuf.js/issues/1477
 # shellcheck disable=SC2016