diff --git a/ng6-material-proj01/package-lock.json b/ng6-material-proj01/package-lock.json
index 0c71010f..a64ef68e 100644
--- a/ng6-material-proj01/package-lock.json
+++ b/ng6-material-proj01/package-lock.json
@@ -10,7 +10,7 @@
                 "@angular/animations": "^6.1.3",
                 "@angular/cdk": "^6.4.5",
                 "@angular/common": "^6.1.0",
-                "@angular/compiler": "^19.2.20",
+                "@angular/compiler": "^20.3.27",
                 "@angular/core": "^11.0.5",
                 "@angular/fire": "^5.1.1",
                 "@angular/flex-layout": "^6.0.0-beta.17",
@@ -475,20 +475,6 @@
                 "url": "https://github.com/sponsors/SuperchupuDev"
             }
         },
-        "node_modules/@angular-devkit/build-angular/node_modules/@angular/compiler": {
-            "version": "20.3.2",
-            "resolved": "https://registry.npmjs.org/@angular/compiler/-/compiler-20.3.2.tgz",
-            "integrity": "sha512-5fSzkPmRomZ9H43c82FJWLwdOi7MICMimP1y1oYJZcUh3jYRhXUrQvD0jifdRVkkgKNjaZYlMr0NkrYQFgFong==",
-            "dev": true,
-            "license": "MIT",
-            "peer": true,
-            "dependencies": {
-                "tslib": "^2.3.0"
-            },
-            "engines": {
-                "node": "^20.19.0 || ^22.12.0 || >=24.0.0"
-            }
-        },
         "node_modules/@angular-devkit/build-angular/node_modules/@inquirer/confirm": {
             "version": "5.1.14",
             "resolved": "https://registry.npmjs.org/@inquirer/confirm/-/confirm-5.1.14.tgz",
@@ -1144,15 +1130,15 @@
             }
         },
         "node_modules/@angular/compiler": {
-            "version": "19.2.20",
-            "resolved": "https://registry.npmjs.org/@angular/compiler/-/compiler-19.2.20.tgz",
-            "integrity": "sha512-LvjE8W58EACgTFaAoqmNe7FRsbvoQ0GvCB/rmm6AEMWx/0W/JBvWkQTrOQlwpoeYOHcMZRGdmPcZoUDwU3JySQ==",
+            "version": "20.3.27",
+            "resolved": "https://registry.npmjs.org/@angular/compiler/-/compiler-20.3.27.tgz",
+            "integrity": "sha512-in3THZ678GAYuOR9RZV18+zZz0KGhlGikyUEfLeALLjGf9ZaR3n+t19BmYx6G2VkF/Xqadne1omQ2vbl6PRASA==",
             "license": "MIT",
             "dependencies": {
                 "tslib": "^2.3.0"
             },
             "engines": {
-                "node": "^18.19.1 || ^20.11.1 || >=22.0.0"
+                "node": "^20.19.0 || ^22.12.0 || >=24.0.0"
             }
         },
         "node_modules/@angular/compiler-cli": {
diff --git a/ng6-material-proj01/package.json b/ng6-material-proj01/package.json
index f7956d12..c387fbe0 100644
--- a/ng6-material-proj01/package.json
+++ b/ng6-material-proj01/package.json
@@ -14,7 +14,7 @@
         "@angular/animations": "^6.1.3",
         "@angular/cdk": "^6.4.5",
         "@angular/common": "^6.1.0",
-        "@angular/compiler": "^19.2.20",
+        "@angular/compiler": "^20.3.27",
         "@angular/core": "^11.0.5",
         "@angular/fire": "^5.1.1",
         "@angular/flex-layout": "^6.0.0-beta.17",