diff --git a/packages/cli/package.json b/packages/cli/package.json
index 1976419c..4a398b2b 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -19,6 +19,7 @@
     "format-text": "prettier --write --prose-wrap always --print-width 80 \"./*.md\"",
     "lint": "eslint --max-warnings 0 \"**/*.{js,ts}\"",
     "lint-fix": "eslint --max-warnings 0 \"**/*.{js,ts}\" --fix",
+    "prebuild": "shx rm -rf ./build",
     "build": "tsc",
     "build-or-skip": "[ -n \"$SKIP_BUILD\" ] || yarn build",
     "start": "yarn build-or-skip && ./bin/cosmwasm-cli",
diff --git a/packages/cosmwasm/package.json b/packages/cosmwasm/package.json
index ad633fe9..89d8ee64 100644
--- a/packages/cosmwasm/package.json
+++ b/packages/cosmwasm/package.json
@@ -28,7 +28,8 @@
     "lint-fix": "eslint --max-warnings 0 \"**/*.{js,ts}\" --fix",
     "move-types": "shx rm -rf ./types/* && shx mv build/types/* ./types && rm -rf ./types/testdata && shx rm -f ./types/*.spec.d.ts && shx rm ./types/**/*.spec.d.ts",
     "format-types": "prettier --write --loglevel warn \"./types/**/*.d.ts\"",
-    "build": "shx rm -rf ./build && tsc && yarn move-types && yarn format-types",
+    "prebuild": "shx rm -rf ./build",
+    "build": "tsc && yarn move-types && yarn format-types",
     "build-or-skip": "[ -n \"$SKIP_BUILD\" ] || yarn build",
     "test-node": "node jasmine-testrunner.js",
     "test-firefox": "yarn pack-web && karma start --single-run --browsers Firefox",
diff --git a/packages/crypto/package.json b/packages/crypto/package.json
index 4ac5120a..5d7c27d9 100644
--- a/packages/crypto/package.json
+++ b/packages/crypto/package.json
@@ -38,7 +38,8 @@
     "coverage": "nyc --reporter=text --reporter=lcov yarn test --quiet",
     "move-types": "shx rm -r ./types/* && shx mv build/types/* ./types && rm -rf ./types/testdata && shx rm -f ./types/*.spec.d.ts",
     "format-types": "prettier --write --loglevel warn \"./types/**/*.d.ts\"",
-    "build": "shx rm -rf ./build && tsc && yarn move-types && yarn format-types",
+    "prebuild": "shx rm -rf ./build",
+    "build": "tsc && yarn move-types && yarn format-types",
     "build-or-skip": "[ -n \"$SKIP_BUILD\" ] || yarn build",
     "pack-web": "yarn build-or-skip && webpack --mode development --config webpack.web.config.js"
   },
diff --git a/packages/encoding/package.json b/packages/encoding/package.json
index 151c4ff6..b2b32e77 100644
--- a/packages/encoding/package.json
+++ b/packages/encoding/package.json
@@ -37,7 +37,8 @@
     "coverage": "nyc --reporter=text --reporter=lcov yarn test --quiet",
     "move-types": "shx rm -r ./types/* && shx mv build/types/* ./types && rm -rf ./types/testdata && shx rm -f ./types/*.spec.d.ts",
     "format-types": "prettier --write --loglevel warn \"./types/**/*.d.ts\"",
-    "build": "shx rm -rf ./build && tsc && yarn move-types && yarn format-types",
+    "prebuild": "shx rm -rf ./build",
+    "build": "tsc && yarn move-types && yarn format-types",
     "build-or-skip": "[ -n \"$SKIP_BUILD\" ] || yarn build",
     "pack-web": "yarn build-or-skip && webpack --mode development --config webpack.web.config.js"
   },
diff --git a/packages/faucet/package.json b/packages/faucet/package.json
index 72d0fea2..80e33c1b 100644
--- a/packages/faucet/package.json
+++ b/packages/faucet/package.json
@@ -27,7 +27,8 @@
     "format-text": "prettier --write --prose-wrap always --print-width 80 \"./*.md\"",
     "lint": "eslint --max-warnings 0 \"**/*.{js,ts}\"",
     "lint-fix": "eslint --max-warnings 0 \"**/*.{js,ts}\" --fix",
-    "build": "shx rm -rf ./build && tsc",
+    "prebuild": "shx rm -rf ./build",
+    "build": "tsc",
     "build-or-skip": "[ -n \"$SKIP_BUILD\" ] || yarn build",
     "test-node": "node jasmine-testrunner.js",
     "test": "yarn build-or-skip && yarn test-node",
diff --git a/packages/json-rpc/package.json b/packages/json-rpc/package.json
index 99ea16b0..b6846b0a 100644
--- a/packages/json-rpc/package.json
+++ b/packages/json-rpc/package.json
@@ -39,7 +39,8 @@
     "coverage": "nyc --reporter=text --reporter=lcov yarn test --quiet",
     "move-types": "shx rm -r ./types/* && shx mv build/types/* ./types && rm -rf ./types/testdata && shx rm -f ./types/*.spec.d.ts",
     "format-types": "prettier --write --loglevel warn \"./types/**/*.d.ts\"",
-    "build": "shx rm -rf ./build && tsc && tsc -p tsconfig.workers.json && yarn move-types && yarn format-types",
+    "prebuild": "shx rm -rf ./build",
+    "build": "tsc && tsc -p tsconfig.workers.json && yarn move-types && yarn format-types",
     "build-or-skip": "[ -n \"$SKIP_BUILD\" ] || yarn build",
     "pack-web": "yarn build-or-skip && webpack --mode development --config webpack.web.config.js"
   },
diff --git a/packages/launchpad/package.json b/packages/launchpad/package.json
index a89e7411..43070c22 100644
--- a/packages/launchpad/package.json
+++ b/packages/launchpad/package.json
@@ -31,7 +31,8 @@
     "lint-fix": "eslint --max-warnings 0 \"**/*.{js,ts}\" --fix",
     "move-types": "shx rm -rf ./types/* && shx mv build/types/* ./types && rm -rf ./types/testdata && shx rm -f ./types/*.spec.d.ts && shx rm ./types/**/*.spec.d.ts",
     "format-types": "prettier --write --loglevel warn \"./types/**/*.d.ts\"",
-    "build": "shx rm -rf ./build && tsc && yarn move-types && yarn format-types",
+    "prebuild": "shx rm -rf ./build",
+    "build": "tsc && yarn move-types && yarn format-types",
     "build-or-skip": "[ -n \"$SKIP_BUILD\" ] || yarn build",
     "test-node": "node jasmine-testrunner.js",
     "test-firefox": "yarn pack-web && karma start --single-run --browsers Firefox",
diff --git a/packages/math/package.json b/packages/math/package.json
index 77bf6de9..19a101d1 100644
--- a/packages/math/package.json
+++ b/packages/math/package.json
@@ -37,7 +37,8 @@
     "coverage": "nyc --reporter=text --reporter=lcov yarn test --quiet",
     "move-types": "shx rm -r ./types/* && shx mv build/types/* ./types && rm -rf ./types/testdata && shx rm -f ./types/*.spec.d.ts",
     "format-types": "prettier --write --loglevel warn \"./types/**/*.d.ts\"",
-    "build": "shx rm -rf ./build && tsc && yarn move-types && yarn format-types",
+    "prebuild": "shx rm -rf ./build",
+    "build": "tsc && yarn move-types && yarn format-types",
     "build-or-skip": "[ -n \"$SKIP_BUILD\" ] || yarn build",
     "pack-web": "yarn build-or-skip && webpack --mode development --config webpack.web.config.js"
   },
diff --git a/packages/proto-signing/package.json b/packages/proto-signing/package.json
index 0c0c20af..ffaa1a19 100644
--- a/packages/proto-signing/package.json
+++ b/packages/proto-signing/package.json
@@ -29,7 +29,8 @@
     "lint-fix": "eslint --max-warnings 0 \"**/*.{js,ts}\" --fix",
     "move-types": "shx rm -rf ./types/* && shx mv build/types/* ./types && rm -rf ./types/testdata && shx rm -f ./types/*.spec.d.ts",
     "format-types": "prettier --write --loglevel warn \"./types/**/*.d.ts\"",
-    "build": "shx rm -rf ./build && tsc && shx mkdir -p build/generated && shx cp ./src/generated/*.js ./build/generated && shx mkdir -p ./build/types/generated && shx cp ./src/generated/*.d.ts ./build/types/generated && yarn move-types && yarn format-types",
+    "prebuild": "shx rm -rf ./build",
+    "build": "tsc && shx mkdir -p build/generated && shx cp ./src/generated/*.js ./build/generated && shx mkdir -p ./build/types/generated && shx cp ./src/generated/*.d.ts ./build/types/generated && yarn move-types && yarn format-types",
     "build-or-skip": "[ -n \"$SKIP_BUILD\" ] || yarn build",
     "test-node": "node jasmine-testrunner.js",
     "test-firefox": "yarn pack-web && karma start --single-run --browsers Firefox",
diff --git a/packages/socket/package.json b/packages/socket/package.json
index 87b793e4..7a1eed45 100644
--- a/packages/socket/package.json
+++ b/packages/socket/package.json
@@ -39,7 +39,8 @@
     "coverage": "nyc --reporter=text --reporter=lcov yarn test --quiet",
     "move-types": "shx rm -r ./types/* && shx mv build/types/* ./types && rm -rf ./types/testdata && shx rm -f ./types/*.spec.d.ts",
     "format-types": "prettier --write --loglevel warn \"./types/**/*.d.ts\"",
-    "build": "shx rm -rf ./build && tsc && yarn move-types && yarn format-types",
+    "prebuild": "shx rm -rf ./build",
+    "build": "tsc && yarn move-types && yarn format-types",
     "build-or-skip": "[ -n \"$SKIP_BUILD\" ] || yarn build",
     "pack-web": "yarn build-or-skip && webpack --mode development --config webpack.web.config.js"
   },
diff --git a/packages/stargate/package.json b/packages/stargate/package.json
index 9353b1b5..665b84cd 100644
--- a/packages/stargate/package.json
+++ b/packages/stargate/package.json
@@ -28,7 +28,8 @@
     "lint-fix": "eslint --max-warnings 0 \"**/*.{js,ts}\" --fix",
     "move-types": "shx rm -rf ./types/* && shx mv build/types/* ./types && rm -rf ./types/testdata && shx rm -f ./types/*.spec.d.ts",
     "format-types": "prettier --write --loglevel warn \"./types/**/*.d.ts\"",
-    "build": "shx rm -rf ./build && tsc && shx mkdir -p build/generated && shx cp ./src/generated/*.js ./build/generated && shx mkdir -p ./build/types/generated && shx cp ./src/generated/*.d.ts ./build/types/generated && yarn move-types && yarn format-types",
+    "prebuild": "shx rm -rf ./build",
+    "build": "tsc && shx mkdir -p build/generated && shx cp ./src/generated/*.js ./build/generated && shx mkdir -p ./build/types/generated && shx cp ./src/generated/*.d.ts ./build/types/generated && yarn move-types && yarn format-types",
     "build-or-skip": "[ -n \"$SKIP_BUILD\" ] || yarn build",
     "test-node": "node jasmine-testrunner.js",
     "test-firefox": "yarn pack-web && karma start --single-run --browsers Firefox",
diff --git a/packages/stream/package.json b/packages/stream/package.json
index 2fc0b767..a8c9a1ce 100644
--- a/packages/stream/package.json
+++ b/packages/stream/package.json
@@ -39,7 +39,8 @@
     "coverage": "nyc --reporter=text --reporter=lcov yarn test --quiet",
     "move-types": "shx rm -r ./types/* && shx mv build/types/* ./types && rm -rf ./types/testdata && shx rm -f ./types/*.spec.d.ts",
     "format-types": "prettier --write --loglevel warn \"./types/**/*.d.ts\"",
-    "build": "shx rm -rf ./build && tsc && yarn move-types && yarn format-types",
+    "prebuild": "shx rm -rf ./build",
+    "build": "tsc && yarn move-types && yarn format-types",
     "build-or-skip": "[ -n \"$SKIP_BUILD\" ] || yarn build",
     "pack-web": "yarn build-or-skip && webpack --mode development --config webpack.web.config.js"
   },
diff --git a/packages/tendermint-rpc/package.json b/packages/tendermint-rpc/package.json
index be5e4efc..61f83c74 100644
--- a/packages/tendermint-rpc/package.json
+++ b/packages/tendermint-rpc/package.json
@@ -39,7 +39,8 @@
     "coverage": "nyc --reporter=text --reporter=lcov yarn test --quiet",
     "move-types": "shx rm -r ./types/* && shx mv build/types/* ./types && rm -rf ./types/testdata && shx rm -f ./types/*.spec.d.ts && shx rm ./types/**/*.spec.d.ts",
     "format-types": "prettier --write --loglevel warn \"./types/**/*.d.ts\"",
-    "build": "shx rm -rf ./build && tsc && yarn move-types && yarn format-types",
+    "prebuild": "shx rm -rf ./build",
+    "build": "tsc && yarn move-types && yarn format-types",
     "build-or-skip": "[ -n \"$SKIP_BUILD\" ] || yarn build",
     "pack-web": "yarn build-or-skip && webpack --mode development --config webpack.web.config.js"
   },
diff --git a/packages/utils/package.json b/packages/utils/package.json
index 4252d9da..b349e8da 100644
--- a/packages/utils/package.json
+++ b/packages/utils/package.json
@@ -30,7 +30,8 @@
     "lint-fix": "eslint --max-warnings 0 \"**/*.{js,ts}\" --fix",
     "move-types": "shx rm -r ./types/* && shx mv build/types/* ./types && rm -rf ./types/testdata && shx rm -f ./types/*.spec.d.ts",
     "format-types": "prettier --write --loglevel warn \"./types/**/*.d.ts\"",
-    "build": "shx rm -rf ./build && tsc && yarn move-types && yarn format-types",
+    "prebuild": "shx rm -rf ./build",
+    "build": "tsc && yarn move-types && yarn format-types",
     "build-or-skip": "[ -n \"$SKIP_BUILD\" ] || yarn build",
     "test-node": "node jasmine-testrunner.js",
     "test": "yarn build-or-skip && yarn test-node",