diff --git a/types/google-publisher-tag/google-publisher-tag-tests.ts b/types/google-publisher-tag/google-publisher-tag-tests.ts
index 4817f40fce84a7..0b7021e8b879eb 100644
--- a/types/google-publisher-tag/google-publisher-tag-tests.ts
+++ b/types/google-publisher-tag/google-publisher-tag-tests.ts
@@ -1,5 +1,5 @@
-// Tests for Google Publisher Tag 1.20260413
-// Synced from: https://github.com/googleads/google-publisher-tag-types/commit/a7102d4da14f534c852664c73adb77db8b803545
+// Tests for Google Publisher Tag 1.20260420
+// Synced from: https://github.com/googleads/google-publisher-tag-types/commit/fec849a853dfba65b7059ba9c2f6a30bbcfa4add
 
 // Test for googletag.cmd
 function test_googletag_cmd() {
@@ -123,6 +123,19 @@ function test_googletag_privacySettingsConfig_trafficSource() {
     });
 }
 
+// Test for googletag.PrivacySettingsConfig.tagForAgeTreatment
+function test_googletag_privacySettingsConfig_tagForAgeTreatment() {
+    // Enable teen privacy treatment.
+    googletag.pubads().setPrivacySettings({
+        tagForAgeTreatment: googletag.enums.TagForAgeTreatment.TEEN,
+    });
+
+    // Clear age treatment configuration.
+    googletag.pubads().setPrivacySettings({
+        tagForAgeTreatment: googletag.enums.TagForAgeTreatment.UNSPECIFIED,
+    });
+}
+
 // Test for googletag.PubAdsService.setTargeting
 function test_googletag_pubAdsService_setTargeting() {
     // Example with a single value for a key.
diff --git a/types/google-publisher-tag/index.d.ts b/types/google-publisher-tag/index.d.ts
index 4a40d259e7b952..0b93356851c994 100644
--- a/types/google-publisher-tag/index.d.ts
+++ b/types/google-publisher-tag/index.d.ts
@@ -442,6 +442,33 @@ declare namespace googletag {
          *   });
          */
         trafficSource?: enums.TrafficSource;
+
+        /**
+         * The age-restricted treatment, indicating whether the ad request should be
+         * treated as child, teen, or unspecified.
+         *
+         * Consult your own legal counsel to determine the age treatment settings for
+         * your users based on your legal and regulatory requirements. For more
+         * information on this setting, review this [Help Center article](
+         * https://support.google.com/adsense/answer/9007197).
+         *
+         * By setting this property, you certify that this notification is accurate
+         * and you are authorized to act on behalf of the owner of the site. You
+         * understand that abuse of this setting may result in termination of your
+         * Google account.
+         *
+         * @example
+         *   // Enable teen privacy treatment.
+         *   googletag.pubads().setPrivacySettings({
+         *     tagForAgeTreatment: googletag.enums.TagForAgeTreatment.TEEN
+         *   });
+         *
+         *   // Clear age treatment configuration.
+         *   googletag.pubads().setPrivacySettings({
+         *     tagForAgeTreatment: googletag.enums.TagForAgeTreatment.UNSPECIFIED
+         *   });
+         */
+        tagForAgeTreatment?: enums.TagForAgeTreatment;
     }
 
     /**
@@ -2859,6 +2886,29 @@ declare namespace googletag {
             /** Direct URL entry, site search, or app download. */
             ORGANIC,
         }
+
+        /**
+         * Age treatment settings supported by GPT.
+         *
+         * @see {@link PrivacySettingsConfig.tagForAgeTreatment}
+         */
+        enum TagForAgeTreatment {
+            /**
+             * Default value. Indicates that no specific age restricted treatment signal
+             * applies to the ad request.
+             */
+            UNSPECIFIED,
+
+            /**
+             * Indicates that ad requests should receive CHILD age treatment.
+             */
+            CHILD,
+
+            /**
+             * Indicates that ad requests should receive TEEN age treatment.
+             */
+            TEEN,
+        }
     }
 
     /**
diff --git a/types/google-publisher-tag/package.json b/types/google-publisher-tag/package.json
index 83dead47adfdfc..635bbea05c307d 100644
--- a/types/google-publisher-tag/package.json
+++ b/types/google-publisher-tag/package.json
@@ -1,7 +1,7 @@
 {
     "private": true,
     "name": "@types/google-publisher-tag",
-    "version": "1.20260413.9999",
+    "version": "1.20260420.9999",
     "nonNpm": "conflict",
     "nonNpmDescription": "Google Publisher Tag",
     "projects": [