diff --git a/dist/index.js b/dist/index.js
index 6f84eae..990c01b 100644
Binary files a/dist/index.js and b/dist/index.js differ
diff --git a/package.json b/package.json
index 991c379..5b35296 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "@types/node": "^22.0.0",
     "expand-tilde": "^2.0.2",
     "yaml": "^2.3.4",
-    "zod": "^3.22.4"
+    "zod": "^4.4.3"
   },
   "devDependencies": {
     "esbuild": "^0.27.4",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index c3b580b..faa4d10 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -33,8 +33,8 @@ importers:
         specifier: ^2.3.4
         version: 2.7.0
       zod:
-        specifier: ^3.22.4
-        version: 3.24.1
+        specifier: ^4.4.3
+        version: 4.4.3
     devDependencies:
       esbuild:
         specifier: ^0.27.4
@@ -493,6 +493,7 @@ packages:
 
   uuid@8.3.2:
     resolution: {integrity: sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==}
+    deprecated: uuid@10 and below is no longer supported.  For ESM codebases, update to uuid@latest.  For CommonJS codebases, use uuid@11 (but be aware this version will likely be deprecated in 2028).
     hasBin: true
 
   webidl-conversions@3.0.1:
@@ -514,8 +515,8 @@ packages:
     engines: {node: '>= 14'}
     hasBin: true
 
-  zod@3.24.1:
-    resolution: {integrity: sha512-muH7gBL9sI1nciMZV67X5fTKKBLtwpZ5VBp1vsOQzj1MhrBZ4wlVCm3gedKZWLp0Oyel8sIGfeiz54Su+OVT+A==}
+  zod@4.4.3:
+    resolution: {integrity: sha512-ytENFjIJFl2UwYglde2jchW2Hwm4GJFLDiSXWdTrJQBIN9Fcyp7n4DhxJEiWNAJMV1/BqWfW/kkg71UDcHJyTQ==}
 
 snapshots:
 
@@ -993,4 +994,4 @@ snapshots:
 
   yaml@2.7.0: {}
 
-  zod@3.24.1: {}
+  zod@4.4.3: {}
diff --git a/src/inputs/run-install.ts b/src/inputs/run-install.ts
index a30877c..44bb853 100644
--- a/src/inputs/run-install.ts
+++ b/src/inputs/run-install.ts
@@ -1,6 +1,6 @@
 import { getInput, error } from '@actions/core'
 import { parse as parseYaml } from 'yaml'
-import { z, ZodError } from 'zod'
+import * as z from 'zod'
 
 const RunInstallSchema = z.object({
   recursive: z.boolean().optional(),
@@ -15,27 +15,22 @@ const RunInstallInputSchema = z.union([
   z.array(RunInstallSchema),
 ])
 
-export type RunInstallInput = z.infer<typeof RunInstallInputSchema>
 export type RunInstall = z.infer<typeof RunInstallSchema>
 
 export function parseRunInstall(inputName: string): RunInstall[] {
   const input = getInput(inputName, { required: true })
   const parsedInput: unknown = parseYaml(input)
 
-  try {
-    const result: RunInstallInput = RunInstallInputSchema.parse(parsedInput)
-    if (!result) return []
-    if (result === true) return [{ recursive: true }]
-    if (Array.isArray(result)) return result
-    return [result]
-  } catch (exception: unknown) {
+  const result = RunInstallInputSchema.safeParse(parsedInput)
+  if (!result.success) {
     error(`Error for input "${inputName}" = ${input}`)
-
-    if (exception instanceof ZodError) {
-      error(`Errors: ${exception.errors}`)
-    } else {
-      error(`Exception: ${exception}`)
-    }
+    error(z.prettifyError(result.error))
     process.exit(1)
   }
+
+  const { data } = result
+  if (!data) return []
+  if (data === true) return [{ recursive: true }]
+  if (Array.isArray(data)) return data
+  return [data]
 }