diff --git a/api-tool/package.json b/api-tool/package.json
index 406393d..872f955 100644
--- a/api-tool/package.json
+++ b/api-tool/package.json
@@ -37,6 +37,6 @@
         "tslint": "^5.9.1",
         "tslint-eslint-rules": "^5.4.0",
         "tslint-react": "^3.4.0",
-        "typescript": "^3.0.0"
+        "typescript": "^4.5.0"
     }
 }
\ No newline at end of file
diff --git a/core/package.json b/core/package.json
index 77b741f..be432a2 100644
--- a/core/package.json
+++ b/core/package.json
@@ -35,6 +35,6 @@
         "tslint": "^5.9.1",
         "tslint-eslint-rules": "^5.4.0",
         "tslint-react": "^3.4.0",
-        "typescript": "^3.0.0"
+        "typescript": "^4.5.0"
     }
 }
\ No newline at end of file
diff --git a/etl/package.json b/etl/package.json
index 3457468..10c826f 100644
--- a/etl/package.json
+++ b/etl/package.json
@@ -28,6 +28,6 @@
     "tslint": "^5.9.1",
     "tslint-eslint-rules": "^5.4.0",
     "tslint-react": "^3.4.0",
-    "typescript": "^3.9.9"
+    "typescript": "^4.5.0"
   }
 }
\ No newline at end of file
diff --git a/event-bus/package.json b/event-bus/package.json
index f23d85a..9722bcc 100644
--- a/event-bus/package.json
+++ b/event-bus/package.json
@@ -29,6 +29,6 @@
     "tslint": "^5.9.1",
     "tslint-eslint-rules": "^5.4.0",
     "tslint-react": "^3.4.0",
-    "typescript": "^3.0.0"
+    "typescript": "^4.5.0"
   }
 }
\ No newline at end of file
diff --git a/fuentes-autenticas/package.json b/fuentes-autenticas/package.json
index 7410864..414f19d 100644
--- a/fuentes-autenticas/package.json
+++ b/fuentes-autenticas/package.json
@@ -29,6 +29,6 @@
     "tslint": "^5.9.1",
     "tslint-eslint-rules": "^5.4.0",
     "tslint-react": "^3.4.0",
-    "typescript": "^3.0.0"
+    "typescript": "^4.5.0"
   }
-}
+}
\ No newline at end of file
diff --git a/mongoose-plugin-audit/package.json b/mongoose-plugin-audit/package.json
index 314b05d..710a214 100644
--- a/mongoose-plugin-audit/package.json
+++ b/mongoose-plugin-audit/package.json
@@ -28,6 +28,6 @@
     "tslint": "^5.9.1",
     "tslint-eslint-rules": "^5.4.0",
     "tslint-react": "^3.4.0",
-    "typescript": "^3.0.0"
+    "typescript": "^4.5.0"
   }
 }
\ No newline at end of file
diff --git a/mongoose-plugin-audit/src/index.ts b/mongoose-plugin-audit/src/index.ts
index 44f2e4b..e60a44e 100644
--- a/mongoose-plugin-audit/src/index.ts
+++ b/mongoose-plugin-audit/src/index.ts
@@ -40,12 +40,13 @@ export function MongooseAuditPlugin(updated = false) {
 
         // Define un método que debe llamarse en el documento principal antes de ejecutar .save()
         schema.methods.audit = function (req: any) {
+            const self = (this as any);
             if (req.user) {
                 const user = { ... (req.user.usuario || req.user.app) };
                 user.organizacion = req.user.organizacion;
-                this.$audit = user;
+                self.$audit = user;
             } else {
-                this.$audit = req;
+                self.$audit = req;
             }
 
         };
@@ -91,7 +92,7 @@ export function MongooseAuditPlugin(updated = false) {
         });
 
         schema.methods.original = function () {
-            return this._original;
+            return (this as any)._original;
         };
     };
 }
diff --git a/mongoose-token-search/package.json b/mongoose-token-search/package.json
index cdcb352..cc38a75 100644
--- a/mongoose-token-search/package.json
+++ b/mongoose-token-search/package.json
@@ -28,6 +28,6 @@
     "tslint": "^5.9.1",
     "tslint-eslint-rules": "^5.4.0",
     "tslint-react": "^3.4.0",
-    "typescript": "^3.0.0"
+    "typescript": "^4.5.0"
   }
 }
\ No newline at end of file
diff --git a/mongoose-token-search/src/index.ts b/mongoose-token-search/src/index.ts
index 4acb63d..dcf1f0a 100644
--- a/mongoose-token-search/src/index.ts
+++ b/mongoose-token-search/src/index.ts
@@ -27,7 +27,7 @@ export function TokenSearch(fields: string[]) {
 
         schema.methods._createTokens = function () {
 
-            const modelo = this;
+            const modelo = this as any;
 
             const tokens: string[] = [];
 
diff --git a/package.json b/package.json
index 3028e98..789b2e6 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
     "husky": "^3.0.4",
     "lerna": "2.8.0",
     "rimraf": "^2.6.2",
-    "typescript": "^2.5.2"
+    "typescript": "^4.5.0"
   },
   "husky": {
     "hooks": {
diff --git a/services/package.json b/services/package.json
index 7f9ca49..1215bad 100644
--- a/services/package.json
+++ b/services/package.json
@@ -38,6 +38,6 @@
     "tslint": "^5.9.1",
     "tslint-eslint-rules": "^5.4.0",
     "tslint-react": "^3.4.0",
-    "typescript": "^3.0.0"
+    "typescript": "^4.5.0"
   }
 }
\ No newline at end of file
diff --git a/tsconfig.base.json b/tsconfig.base.json
index 9ff4f19..34966bc 100644
--- a/tsconfig.base.json
+++ b/tsconfig.base.json
@@ -14,6 +14,7 @@
     "strict": true,
     "pretty": true,
     "jsx": "react",
-    "suppressImplicitAnyIndexErrors": true
+    "suppressImplicitAnyIndexErrors": true,
+    "skipLibCheck": true
   }
 }
\ No newline at end of file