diff --git a/.changeset/real-corners-cross.md b/.changeset/real-corners-cross.md
new file mode 100644
index 00000000000..525e77a1b8e
--- /dev/null
+++ b/.changeset/real-corners-cross.md
@@ -0,0 +1,5 @@
+---
+'@spectrum-web-components/tooltip': patch
+---
+
+**Fixed**: Fixed an issue with text overflow in `sp-tooltip`: long, unbroken words were not wrapping and overflowed the container.
diff --git a/1st-gen/packages/tooltip/src/spectrum-tooltip.css b/1st-gen/packages/tooltip/src/spectrum-tooltip.css
index 1bc7074c590..022b9af8ef6 100644
--- a/1st-gen/packages/tooltip/src/spectrum-tooltip.css
+++ b/1st-gen/packages/tooltip/src/spectrum-tooltip.css
@@ -321,6 +321,10 @@
     line-height: var(--mod-tooltip-line-height, var(--spectrum-tooltip-line-height));
     margin-block-start: var(--mod-tooltip-spacing-block-start, var(--spectrum-tooltip-spacing-block-start));
     margin-block-end: var(--mod-tooltip-spacing-block-end, var(--spectrum-tooltip-spacing-block-end));
+
+    /* Allow overflow-wrap to work and prevent text overflow */
+    inline-size: 100%;
+    min-inline-size: 0;
 }
 
 #tooltip,