diff --git a/scripts/publish.ts b/scripts/publish.ts
index b3676c2f5..78d952717 100755
--- a/scripts/publish.ts
+++ b/scripts/publish.ts
@@ -1,39 +1,58 @@
 #!/usr/bin/env ts-node
 import compare from "semver/functions/compare"
-import { execSync } from "child_process"
+import { spawn } from "child_process"
 import contractsPkgJson from "@semaphore-protocol/contracts/package.json"
 
 const { version: contractsLocalVersion } = contractsPkgJson
 
+interface SoldeerResponse {
+    data: { version: string }[]
+}
+
+function run(command: string, args: string[] = []) {
+    return new Promise<void>((resolve, reject) => {
+        const child = spawn(command, args, { stdio: "inherit", shell: true })
+        child.on("exit", (code) => {
+            if (code === 0) resolve()
+            else reject(new Error(`${command} ${args.join(" ")} failed with code ${code}`))
+        })
+    })
+}
+
 async function maybePushToSoldeer() {
-    // api not documented, may change, found by inspecting the network tab
     const response = await fetch(
         "https://api.soldeer.xyz/api/v1/revision?project_name=semaphore-protocol-contracts&limit=1"
     )
-    const { data } = await response.json()
+    const { data }: SoldeerResponse = await response.json()
 
-    if (
-        data.length === 0 || // data = [] if no version has ever been published yet
-        compare(contractsLocalVersion, data[0].version) === 1
-    )
-        execSync(`soldeer push semaphore-protocol-contracts~${contractsLocalVersion} packages/contracts/contracts`, {
-            stdio: "inherit"
-        })
+    if (data.length === 0 || compare(contractsLocalVersion, data[0].version) === 1) {
+        await run("soldeer", [
+            "push",
+            `semaphore-protocol-contracts~${contractsLocalVersion}`,
+            "packages/contracts/contracts",
+        ])
+    }
 }
 
 async function main() {
-    execSync(`yarn build:libraries`, { stdio: "inherit" })
-    execSync(`yarn clean:cli-templates`)
-    execSync(`yarn workspaces foreach -A --no-private npm publish --tolerate-republish --access public`, {
-        stdio: "inherit"
-    })
+    await run("yarn", ["build:libraries"])
+    await run("yarn", ["clean:cli-templates"])
+    await run("yarn", [
+        "workspaces",
+        "foreach",
+        "-A",
+        "--no-private",
+        "npm",
+        "publish",
+        "--tolerate-republish",
+        "--access",
+        "public",
+    ])
 
     await maybePushToSoldeer()
 }
 
-main()
-    .then(() => process.exit(0))
-    .catch((error) => {
-        console.error(error)
-        process.exit(1)
-    })
+main().catch((error) => {
+    console.error(error)
+    process.exitCode = 1
+})