diff --git a/.changeset/nervous-icons-relate.md b/.changeset/nervous-icons-relate.md
new file mode 100644
index 000000000..286afa37a
--- /dev/null
+++ b/.changeset/nervous-icons-relate.md
@@ -0,0 +1,5 @@
+---
+'@primer/primitives': patch
+---
+
+Add 100ms duration for very short transitions
diff --git a/src/tokens/base/motion/timing.json5 b/src/tokens/base/motion/timing.json5
index 59bdf5da7..eb6cc9f7b 100644
--- a/src/tokens/base/motion/timing.json5
+++ b/src/tokens/base/motion/timing.json5
@@ -9,6 +9,10 @@
         $value: '75ms',
         $type: 'duration',
       },
+      '100': {
+        $value: '100ms',
+        $type: 'duration',
+      },
       '200': {
         $value: '200ms',
         $type: 'duration',