diff --git a/package.json b/package.json
index c850067..beacabe 100644
--- a/package.json
+++ b/package.json
@@ -16,10 +16,9 @@
     "ajv": "^8.12.0",
     "expand-tilde": "^2.0.2",
     "fs-extra": "^11.2.0",
-    "js-yaml": "^4.1.0"
+    "yaml": "^2.3.4"
   },
   "devDependencies": {
-    "@ts-schema-autogen/cli": "^0.1.2",
     "@vercel/ncc": "^0.38.1",
     "typescript": "^5.3.3"
   }
diff --git a/src/inputs/run-install-input.schema.autogen.json b/src/inputs/run-install-input.schema.autogen.json
deleted file mode 100644
index 1a70dd1..0000000
--- a/src/inputs/run-install-input.schema.autogen.json
+++ /dev/null
@@ -1,21 +0,0 @@
-{
-  "$schema": "https://raw.githubusercontent.com/ksxnodeapps/ts-schema-autogen/master/packages/schemas/config.schema.json",
-  "instruction": {
-    "compilerOptions": {
-      "strict": true,
-      "target": "ES2018",
-      "lib": [
-        "ES2018",
-        "ES2019",
-        "ES2020",
-        "ESNext"
-      ],
-      "moduleResolution": "Node",
-      "esModuleInterop": true,
-      "resolveJsonModule": true
-    },
-    "input": "run-install.ts",
-    "symbol": "RunInstallInput",
-    "output": "run-install-input.schema.json"
-  }
-}
diff --git a/src/inputs/run-install-input.schema.json b/src/inputs/run-install-input.schema.json
deleted file mode 100644
index 4a84219..0000000
--- a/src/inputs/run-install-input.schema.json
+++ /dev/null
@@ -1,39 +0,0 @@
-{
-  "anyOf": [
-    {
-      "$ref": "#/definitions/RunInstall"
-    },
-    {
-      "type": "array",
-      "items": {
-        "$ref": "#/definitions/RunInstall"
-      }
-    },
-    {
-      "type": [
-        "null",
-        "boolean"
-      ]
-    }
-  ],
-  "definitions": {
-    "RunInstall": {
-      "type": "object",
-      "properties": {
-        "recursive": {
-          "type": "boolean"
-        },
-        "cwd": {
-          "type": "string"
-        },
-        "args": {
-          "type": "array",
-          "items": {
-            "type": "string"
-          }
-        }
-      }
-    }
-  },
-  "$schema": "http://json-schema.org/draft-07/schema#"
-}
diff --git a/src/inputs/run-install.ts b/src/inputs/run-install.ts
index 7914110..d7106e7 100644
--- a/src/inputs/run-install.ts
+++ b/src/inputs/run-install.ts
@@ -1,8 +1,5 @@
-import { getInput, error, InputOptions } from '@actions/core'
-import Ajv from 'ajv'
-import { load } from 'js-yaml'
-import process from 'process'
-import runInstallSchema from './run-install-input.schema.json'
+import { getInput,InputOptions } from '@actions/core'
+import { parse } from 'yaml'
 
 export interface RunInstall {
   readonly recursive?: boolean
@@ -21,19 +18,43 @@ const options: InputOptions = {
 }
 
 export function parseRunInstall(name: string): RunInstall[] {
-  const result: RunInstallInput = load(getInput(name, options)) as any
-  const ajv = new Ajv({
-    allErrors: true,
-  })
-  const validate = ajv.compile(runInstallSchema)
-  if (!validate(result)) {
-    for (const errorItem of validate.errors!) {
-      error(`with.run_install${errorItem.dataPath}: ${errorItem.message}`)
-    }
-    return process.exit(1)
-  }
-  if (!result) return []
-  if (result === true) return [{ recursive: true }]
-  if (Array.isArray(result)) return result
-  return [result]
+  const input: any = parse(getInput(name, options))
+
+  if (!input) return []
+  if (input === true) return [{ recursive: true }]
+
+  validateRunInstallInput(input)
+
+  if (Array.isArray(input)) return input
+
+  return input;
 }
+
+function validateRunInstallInput(input: any) {
+  if (Array.isArray(input)) {
+    for (const entry of input) {
+      validateRunInstallEntry(entry)
+    }
+  } else {
+    validateRunInstallEntry(input)
+  }
+
+}
+
+function validateRunInstallEntry(input: any) {
+  if (typeof input !== 'object') {
+    throw new Error('Invalid input for run_install')
+  }
+
+  if (input.recursive !== undefined && typeof input.recursive !== 'boolean') {
+    throw new Error('Invalid input for run_install.recursive')
+  }
+
+  if (input.cwd !== undefined && typeof input.cwd !== 'string') {
+    throw new Error('Invalid input for run_install.cwd')
+  }
+
+  if (input.args !== undefined && !Array.isArray(input.args)) {
+    throw new Error('Invalid input for run_install.args')
+  }
+}
\ No newline at end of file