diff --git a/package-lock.json b/package-lock.json
index 4418021..cc30bd9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -20031,22 +20031,22 @@
       "dev": true
     },
     "ts-jest": {
-      "version": "26.3.0",
-      "resolved": "https://registry.npmjs.org/ts-jest/-/ts-jest-26.3.0.tgz",
-      "integrity": "sha512-Jq2uKfx6bPd9+JDpZNMBJMdMQUC3sJ08acISj8NXlVgR2d5OqslEHOR2KHMgwymu8h50+lKIm0m0xj/ioYdW2Q==",
+      "version": "26.4.0",
+      "resolved": "https://registry.npmjs.org/ts-jest/-/ts-jest-26.4.0.tgz",
+      "integrity": "sha512-ofBzoCqf6Nv/PoWb/ByV3VNKy2KJSikamOBxvR3E6eVdIw10GwAXoyvMWXXjZJK2s6S27ZE8fI+JBTnGaovl6Q==",
       "dev": true,
       "requires": {
         "@types/jest": "26.x",
         "bs-logger": "0.x",
         "buffer-from": "1.x",
         "fast-json-stable-stringify": "2.x",
-        "jest-util": "26.x",
+        "jest-util": "^26.1.0",
         "json5": "2.x",
         "lodash.memoize": "4.x",
         "make-error": "1.x",
         "mkdirp": "1.x",
         "semver": "7.x",
-        "yargs-parser": "18.x"
+        "yargs-parser": "20.x"
       },
       "dependencies": {
         "mkdirp": {
@@ -20060,6 +20060,12 @@
           "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.2.tgz",
           "integrity": "sha512-OrOb32TeeambH6UrhtShmF7CRDqhL6/5XpPNp2DuRH6+9QLw/orhp72j87v8Qa1ScDkvrrBNpZcDejAirJmfXQ==",
           "dev": true
+        },
+        "yargs-parser": {
+          "version": "20.2.0",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-20.2.0.tgz",
+          "integrity": "sha512-2agPoRFPoIcFzOIp6656gcvsg2ohtscpw2OINr/q46+Sq41xz2OYLqx5HRHabmFU1OARIPAYH5uteICE7mn/5A==",
+          "dev": true
         }
       }
     },
diff --git a/package.json b/package.json
index 80bcbe6..bedb087 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "jest": "^26.4.2",
     "postcss-preset-env": "^6.7.0",
     "prettier": "^2.1.1",
-    "ts-jest": "^26.3.0",
+    "ts-jest": "^26.4.0",
     "typescript": "^4.0.2"
   },
   "engines": {