diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0d7b729179..a6f02c1187 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@
   useful summary for people upgrading their application, not a replication
   of the commit log.
 
+## Unreleased
+
+* Add Welsh translation for "Sharing will open the page in a new tab" ([PR #3370](https://github.com/alphagov/govuk_publishing_components/pull/3370))
+
 ## 34.7.1
 
 * Use base path to form URLs for related World Location links ([PR #3102](https://github.com/alphagov/govuk_publishing_components/pull/3102))
diff --git a/config/locales/cy.yml b/config/locales/cy.yml
index ddb45a3e01..a32df83bea 100644
--- a/config/locales/cy.yml
+++ b/config/locales/cy.yml
@@ -176,7 +176,7 @@ cy:
       label: Chwilio ar GOV.UK
       search_button: Chwilio
     share_links:
-      all_opens_in_new_tab:
+      all_opens_in_new_tab: Bydd rhannu yn agor y dudalen hon mewn tab newydd
       opens_in_new_tab:
     show_password:
       announce_hide: Mae eich cyfrinair wedi'i guddio