diff --git a/.changeset/little-monkeys-shop.md b/.changeset/little-monkeys-shop.md
new file mode 100644
index 0000000000..1e1ec2d9d0
--- /dev/null
+++ b/.changeset/little-monkeys-shop.md
@@ -0,0 +1,5 @@
+---
+"@stackoverflow/stacks": patch
+---
+
+Wrap long post-summary titles
diff --git a/packages/stacks-classic/lib/components/post-summary/post-summary.less b/packages/stacks-classic/lib/components/post-summary/post-summary.less
index 6ddc126202..196de3a9c4 100644
--- a/packages/stacks-classic/lib/components/post-summary/post-summary.less
+++ b/packages/stacks-classic/lib/components/post-summary/post-summary.less
@@ -253,6 +253,7 @@
         display: flex;
         gap: var(--su6);
         line-height: 1.563rem; // TODO use a standard line-height variable (currently 25px)
+        word-break: break-all;
     }
 
     & &--title-link {