diff --git a/package-lock.json b/package-lock.json
index 8cde685..bbe15c1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,7 +17,7 @@
         "rollup-plugin-terser": "^7.0.2",
         "ts-jest": "^26.4.4",
         "tslib": "^2.3.1",
-        "typescript": "^4.4.2"
+        "typescript": "4.3.5"
       }
     },
     "node_modules/@babel/code-frame": {
@@ -7880,9 +7880,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "4.4.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.4.2.tgz",
-      "integrity": "sha512-gzP+t5W4hdy4c+68bfcv0t400HVJMMd2+H9B7gae1nQlBzCqvrXX+6GL/b3GAgyTH966pzrZ70/fRjwAtZksSQ==",
+      "version": "4.3.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
+      "integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
       "dev": true,
       "bin": {
         "tsc": "bin/tsc",
@@ -14491,9 +14491,9 @@
       }
     },
     "typescript": {
-      "version": "4.4.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.4.2.tgz",
-      "integrity": "sha512-gzP+t5W4hdy4c+68bfcv0t400HVJMMd2+H9B7gae1nQlBzCqvrXX+6GL/b3GAgyTH966pzrZ70/fRjwAtZksSQ==",
+      "version": "4.3.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
+      "integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
       "dev": true
     },
     "union-value": {
diff --git a/package.json b/package.json
index fe99054..a836894 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "rollup-plugin-terser": "^7.0.2",
     "ts-jest": "^26.4.4",
     "tslib": "^2.3.1",
-    "typescript": "^4.4.2"
+    "typescript": "4.3.5"
   },
   "release-it": {
     "github": {