diff --git a/package.json b/package.json
index 5e6d7ad..efe92d3 100644
--- a/package.json
+++ b/package.json
@@ -29,6 +29,7 @@
     "yargs": "^14.0.0"
   },
   "devDependencies": {
+    "@types/ajv-pack": "^0.3.0",
     "@types/fs-extra": "^8.0.0",
     "@types/jest": "^24.0.18",
     "@types/yargs": "^13.0.2",
@@ -41,6 +42,9 @@
     "tslint": "^5.18.0",
     "typescript": "^3.5.3"
   },
+  "resolutions": {
+    "ajv": "^6.10.2"
+  },
   "lint-staged": {
     "*.{ts, js}": [
       "tslint --fix",
diff --git a/src/ajv-pack.d.ts b/src/ajv-pack.d.ts
deleted file mode 100644
index bf1a123..0000000
--- a/src/ajv-pack.d.ts
+++ /dev/null
@@ -1,5 +0,0 @@
-declare module "ajv-pack" {
-  import { Ajv, ValidateFunction } from "ajv";
-  function ajvPack(instance: Ajv, validator: ValidateFunction): string;
-  export default ajvPack;
-}
diff --git a/yarn.lock b/yarn.lock
index 80bc1ea..00fa526 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -46,11 +46,25 @@
   dependencies:
     any-observable "^0.3.0"
 
+"@types/ajv-pack@^0.3.0":
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/@types/ajv-pack/-/ajv-pack-0.3.0.tgz#8d3d8ae098cee90e8e3da39b24585fb6be7dd50a"
+  integrity sha512-EkjMh/W9NFob2wCKGbcrWhG+vfN6/iC2m2+KsDr1r87m7PdtCacvOxMJW0xQtVCvwuM8gFfQd9CwPsvYup1zlg==
+  dependencies:
+    ajv "^5.0.0"
+
 "@types/events@*":
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/@types/events/-/events-3.0.0.tgz#2862f3f58a9a7f7c3e78d79f130dd4d71c25c2a7"
   integrity sha512-EaObqwIvayI5a8dCzhFrjKzVwKLxjoG9T6Ppd5CEo07LRKfQ8Yokw54r5+Wq7FaBQ+yXRvQAYPrHwya1/UFt9g==
 
+"@types/fs-extra@^8.0.0":
+  version "8.0.0"
+  resolved "https://registry.yarnpkg.com/@types/fs-extra/-/fs-extra-8.0.0.tgz#d3e2c313ca29f95059f198dd60d1f774642d4b25"
+  integrity sha512-bCtL5v9zdbQW86yexOlXWTEGvLNqWxMFyi7gQA7Gcthbezr2cPSOb8SkESVKA937QD5cIwOFLDFt0MQoXOEr9Q==
+  dependencies:
+    "@types/node" "*"
+
 "@types/glob@^7.1.1":
   version "7.1.1"
   resolved "https://registry.yarnpkg.com/@types/glob/-/glob-7.1.1.tgz#aa59a1c6e3fbc421e07ccd31a944c30eba521575"
@@ -97,6 +111,18 @@
   resolved "https://registry.yarnpkg.com/@types/prettier/-/prettier-1.18.2.tgz#069e7d132024d436fd1f5771f6932426a695f230"
   integrity sha512-2JBasa5Qaj81Qsp/dxX2Njy+MdKC767WytHUDsRM7TYEfQvKPxsnGpnCBlBS1i2Aiv1YwCpmKSbQ6O6v8TpiKg==
 
+"@types/yargs-parser@*":
+  version "13.1.0"
+  resolved "https://registry.yarnpkg.com/@types/yargs-parser/-/yargs-parser-13.1.0.tgz#c563aa192f39350a1d18da36c5a8da382bbd8228"
+  integrity sha512-gCubfBUZ6KxzoibJ+SCUc/57Ms1jz5NjHe4+dI2krNmU5zCPAphyLJYyTOg06ueIyfj+SaCUqmzun7ImlxDcKg==
+
+"@types/yargs@^13.0.2":
+  version "13.0.3"
+  resolved "https://registry.yarnpkg.com/@types/yargs/-/yargs-13.0.3.tgz#76482af3981d4412d65371a318f992d33464a380"
+  integrity sha512-K8/LfZq2duW33XW/tFwEAfnZlqIfVsoyRB3kfXdPXYhl0nfM8mmh7GS0jg7WrX2Dgq/0Ha/pR1PaR+BvmWwjiQ==
+  dependencies:
+    "@types/yargs-parser" "*"
+
 abbrev@1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
@@ -118,7 +144,7 @@ ajv-pack@^0.3.1:
     js-beautify "^1.6.4"
     require-from-string "^1.2.0"
 
-ajv@^6.10.2:
+ajv@^5.0.0, ajv@^6.10.2:
   version "6.10.2"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.10.2.tgz#d3cea04d6b017b2894ad69040fec8b623eb4bd52"
   integrity sha512-TXtUUEYHuaTEbLZWIKUr5pmBuhDLy+8KYtPYdcV8qC+pOZL+NKqYwvWSRrVXHn+ZmRRAu8vJTAznH7Oag6RVRw==