diff --git a/components/picker/themes/express.css b/components/picker/themes/express.css
index c689a2200eb..a92203cc2d2 100644
--- a/components/picker/themes/express.css
+++ b/components/picker/themes/express.css
@@ -24,5 +24,7 @@ governing permissions and limitations under the License.
     --spectrum-picker-border-color-hover-open: transparent;
     --spectrum-picker-border-color-active: transparent;
     --spectrum-picker-border-color-key-focus: transparent;
+
+    --spectrum-picker-border-width: 0px;
   }
 }
diff --git a/components/picker/themes/spectrum.css b/components/picker/themes/spectrum.css
index 511405d1ebd..c9452754589 100644
--- a/components/picker/themes/spectrum.css
+++ b/components/picker/themes/spectrum.css
@@ -24,5 +24,7 @@ governing permissions and limitations under the License.
     --spectrum-picker-border-color-hover-open: var(--spectrum-gray-600);
     --spectrum-picker-border-color-active: var(--spectrum-gray-700);
     --spectrum-picker-border-color-key-focus: var(--spectrum-gray-600);
+
+    --spectrum-picker-border-width: var(--spectrum-border-width-100);
   }
 }