diff --git a/Gruntfile.js b/Gruntfile.js
index 166e196..80f3b0b 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -50,7 +50,7 @@ module.exports = grunt => {
                 files: ["src/main/**/*.html"],
                 tasks: ["copy:html"],
             },
-            js: {
+            ts: {
                 files: ["src/main/**/*.ts"],
                 tasks: ["webpack:dev", "replace:dev"],
             },
diff --git a/package-lock.json b/package-lock.json
index 04c3887..17f52cb 100644
Binary files a/package-lock.json and b/package-lock.json differ
diff --git a/package.json b/package.json
index e8d8ce0..28392d8 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "doomsday",
-    "version": "1.4.0",
+    "version": "1.4.1",
     "description": "Test your mastery of Conway's Doomsday rule.",
     "author": "Florine W. Dekker",
     "browser": "dist/bundle.js",
@@ -19,7 +19,7 @@
         "luxon": "^2.3.1"
     },
     "devDependencies": {
-        "@types/luxon": "^2.3.0",
+        "@types/luxon": "^2.3.1",
         "grunt": "^1.4.1",
         "grunt-cli": "^1.4.3",
         "grunt-contrib-clean": "^2.0.0",
@@ -29,7 +29,7 @@
         "grunt-text-replace": "^0.4.0",
         "grunt-webpack": "^5.0.0",
         "ts-loader": "^9.2.8",
-        "typescript": "^4.6.2",
+        "typescript": "^4.6.3",
         "webpack": "^5.70.0",
         "webpack-cli": "^4.9.2"
     }
diff --git a/src/main/js/Main.ts b/src/main/js/Main.ts
index 0413f1d..dbad7a6 100644
--- a/src/main/js/Main.ts
+++ b/src/main/js/Main.ts
@@ -24,15 +24,15 @@ class ValidatableInput {
     /**
      * The input that is validatable.
      */
-    readonly input: HTMLInputElement
+    readonly input: HTMLInputElement;
     /**
      * The label of which to update the text.
      */
-    readonly titleLabel: HTMLElement
+    readonly titleLabel: HTMLElement;
     /**
      * The submission button that activates validation.
      */
-    readonly button: HTMLButtonElement
+    readonly button: HTMLButtonElement;
 
 
     /**
@@ -285,7 +285,8 @@ class DoomsdayDate {
      * @return the day of the week of the anchor of this `DoomsdayDate`'s century
      */
     getCenturyAnchorString(): string {
-        return this.date.set({year: this.getCentury() * 100, month: 4, day: 4}).setLocale("en-US").weekdayLong;
+        // TODO: Support BCE years
+        return this.date.set({year: (this.getCentury() + 4) * 100, month: 4, day: 4}).setLocale("en-US").weekdayLong;
     };
 
     /**
@@ -294,7 +295,8 @@ class DoomsdayDate {
      * @return the day of the week of the anchor day of this `DoomsdayDate`'s year
      */
     getYearAnchorString(): string {
-        return this.date.set({day: 4, month: 4}).setLocale("en-US").weekdayLong;
+        // TODO: Support BCE years
+        return this.date.set({year: this.date.year + 400, day: 4, month: 4}).setLocale("en-US").weekdayLong;
     };
 
     /**
@@ -303,7 +305,8 @@ class DoomsdayDate {
      * @return the day of the week of this `DoomsdayDate`
      */
     getWeekdayString(): string {
-        return this.date.setLocale("en-US").weekdayLong;
+        // TODO: Support BCE years
+        return this.date.set({year: this.date.year + 400}).setLocale("en-US").weekdayLong;
     };