diff --git a/django/contrib/admin/static/admin/css/nav_sidebar.css b/django/contrib/admin/static/admin/css/nav_sidebar.css
index 7d4c75fe12f..d599299b557 100644
--- a/django/contrib/admin/static/admin/css/nav_sidebar.css
+++ b/django/contrib/admin/static/admin/css/nav_sidebar.css
@@ -78,6 +78,10 @@
     padding-left: 16px;
 }
 
+#nav-sidebar .module td {
+    white-space: nowrap;
+}
+
 [dir="rtl"] #nav-sidebar .module th,
 [dir="rtl"] #nav-sidebar .module caption {
     padding-left: 8px;
diff --git a/docs/releases/3.1.1.txt b/docs/releases/3.1.1.txt
index a83cfd595bc..4ccd0e37186 100644
--- a/docs/releases/3.1.1.txt
+++ b/docs/releases/3.1.1.txt
@@ -9,4 +9,5 @@ Django 3.1.1 fixes several bugs in 3.1.
 Bugfixes
 ========
 
-* ...
+* Fixed wrapping of translated action labels in the admin's navigation sidebar
+  for East Asian languages (:ticket:`31853`).