diff --git a/package-lock.json b/package-lock.json
index 37000ab..f720087 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -27,7 +27,7 @@
         "@types/jest": "^26.0.14",
         "coveralls": "^3.0.9",
         "jest": "^27.0.3",
-        "ts-jest": "^27.0.1",
+        "ts-jest": "^27.0.6",
         "tslint": "^6.1.3",
         "webpack-dev-server": "^3.10.1"
       }
@@ -8346,6 +8346,12 @@
       "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
       "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
+    "node_modules/lodash.memoize": {
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/lodash.memoize/-/lodash.memoize-4.1.2.tgz",
+      "integrity": "sha1-vMbEmkKihA7Zl/Mj6tpezRguC/4=",
+      "dev": true
+    },
     "node_modules/log-driver": {
       "version": "1.2.7",
       "resolved": "https://registry.npmjs.org/log-driver/-/log-driver-1.2.7.tgz",
@@ -11560,19 +11566,17 @@
       }
     },
     "node_modules/ts-jest": {
-      "version": "27.0.1",
-      "resolved": "https://registry.npmjs.org/ts-jest/-/ts-jest-27.0.1.tgz",
-      "integrity": "sha512-03qAt77QjhxyM5Bt2KrrT1WbdumiwLz989sD3IUznSp3GIFQrx76kQqSMLF7ynnxrF3/1ipzABnHxMlU8PD4Vw==",
+      "version": "27.0.6",
+      "resolved": "https://registry.npmjs.org/ts-jest/-/ts-jest-27.0.6.tgz",
+      "integrity": "sha512-XWkEBbrkyUWJdK9FwiCVdBZ7ZmT7sxcKtyVEZNmo7u8eQw6NHmtYEM2WpkX9VfnRI0DjSr6INfEHC9vCFhsFnQ==",
       "dev": true,
       "dependencies": {
         "bs-logger": "0.x",
-        "buffer-from": "1.x",
         "fast-json-stable-stringify": "2.x",
         "jest-util": "^27.0.0",
         "json5": "2.x",
-        "lodash": "4.x",
+        "lodash.memoize": "4.x",
         "make-error": "1.x",
-        "mkdirp": "1.x",
         "semver": "7.x",
         "yargs-parser": "20.x"
       },
@@ -11583,20 +11587,22 @@
         "node": "^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0"
       },
       "peerDependencies": {
+        "@babel/core": ">=7.0.0-beta.0 <8",
+        "@types/jest": "^27.0.0",
+        "babel-jest": ">=27.0.0 <28",
         "jest": "^27.0.0",
         "typescript": ">=3.8 <5.0"
-      }
-    },
-    "node_modules/ts-jest/node_modules/mkdirp": {
-      "version": "1.0.4",
-      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-1.0.4.tgz",
-      "integrity": "sha512-vVqVZQyf3WLx2Shd0qJ9xuvqgAyKPLAiqITEtqW0oIUjzo3PePDd6fW9iFz30ef7Ysp/oiWqbhszeGWW2T6Gzw==",
-      "dev": true,
-      "bin": {
-        "mkdirp": "bin/cmd.js"
       },
-      "engines": {
-        "node": ">=10"
+      "peerDependenciesMeta": {
+        "@babel/core": {
+          "optional": true
+        },
+        "@types/jest": {
+          "optional": true
+        },
+        "babel-jest": {
+          "optional": true
+        }
       }
     },
     "node_modules/ts-jest/node_modules/semver": {
@@ -19463,6 +19469,12 @@
       "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
       "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
+    "lodash.memoize": {
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/lodash.memoize/-/lodash.memoize-4.1.2.tgz",
+      "integrity": "sha1-vMbEmkKihA7Zl/Mj6tpezRguC/4=",
+      "dev": true
+    },
     "log-driver": {
       "version": "1.2.7",
       "resolved": "https://registry.npmjs.org/log-driver/-/log-driver-1.2.7.tgz",
@@ -21963,29 +21975,21 @@
       }
     },
     "ts-jest": {
-      "version": "27.0.1",
-      "resolved": "https://registry.npmjs.org/ts-jest/-/ts-jest-27.0.1.tgz",
-      "integrity": "sha512-03qAt77QjhxyM5Bt2KrrT1WbdumiwLz989sD3IUznSp3GIFQrx76kQqSMLF7ynnxrF3/1ipzABnHxMlU8PD4Vw==",
+      "version": "27.0.6",
+      "resolved": "https://registry.npmjs.org/ts-jest/-/ts-jest-27.0.6.tgz",
+      "integrity": "sha512-XWkEBbrkyUWJdK9FwiCVdBZ7ZmT7sxcKtyVEZNmo7u8eQw6NHmtYEM2WpkX9VfnRI0DjSr6INfEHC9vCFhsFnQ==",
       "dev": true,
       "requires": {
         "bs-logger": "0.x",
-        "buffer-from": "1.x",
         "fast-json-stable-stringify": "2.x",
         "jest-util": "^27.0.0",
         "json5": "2.x",
-        "lodash": "4.x",
+        "lodash.memoize": "4.x",
         "make-error": "1.x",
-        "mkdirp": "1.x",
         "semver": "7.x",
         "yargs-parser": "20.x"
       },
       "dependencies": {
-        "mkdirp": {
-          "version": "1.0.4",
-          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-1.0.4.tgz",
-          "integrity": "sha512-vVqVZQyf3WLx2Shd0qJ9xuvqgAyKPLAiqITEtqW0oIUjzo3PePDd6fW9iFz30ef7Ysp/oiWqbhszeGWW2T6Gzw==",
-          "dev": true
-        },
         "semver": {
           "version": "7.3.5",
           "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.5.tgz",
diff --git a/package.json b/package.json
index fba5798..55bbc49 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
     "@types/jest": "^26.0.14",
     "coveralls": "^3.0.9",
     "jest": "^27.0.3",
-    "ts-jest": "^27.0.1",
+    "ts-jest": "^27.0.6",
     "tslint": "^6.1.3",
     "webpack-dev-server": "^3.10.1"
   }