diff --git a/docs/pkgdown.yml b/docs/pkgdown.yml
index 1ade534..70c7c01 100644
--- a/docs/pkgdown.yml
+++ b/docs/pkgdown.yml
@@ -18,5 +18,5 @@ articles:
   provider: provider.html
   visit_detail: visit_detail.html
   visit_occurrence: visit_occurrence.html
-last_built: 2024-05-16T21:34Z
+last_built: 2024-06-02T09:56Z
 
diff --git a/docs/sitemap.xml b/docs/sitemap.xml
index 4fc57da..1387fdc 100644
--- a/docs/sitemap.xml
+++ b/docs/sitemap.xml
@@ -28,28 +28,22 @@
     <loc>/Visit_occurrence.html</loc>
   </url>
   <url>
-    <loc>/articles/Condition_occurrence.html</loc>
-  </url>
-  <url>
-    <loc>/articles/Cost.html</loc>
-  </url>
-  <url>
-    <loc>/articles/Device_exposure.html</loc>
+    <loc>/articles/care_site.html</loc>
   </url>
   <url>
-    <loc>/articles/Drug_exposure.html</loc>
+    <loc>/articles/condition_occurrence.html</loc>
   </url>
   <url>
-    <loc>/articles/Measurement.html</loc>
+    <loc>/articles/cost.html</loc>
   </url>
   <url>
-    <loc>/articles/Payer_plan_period.html</loc>
+    <loc>/articles/death.html</loc>
   </url>
   <url>
-    <loc>/articles/care_site.html</loc>
+    <loc>/articles/device_exposure.html</loc>
   </url>
   <url>
-    <loc>/articles/death.html</loc>
+    <loc>/articles/drug_exposure.html</loc>
   </url>
   <url>
     <loc>/articles/index.html</loc>
@@ -57,12 +51,18 @@
   <url>
     <loc>/articles/location.html</loc>
   </url>
+  <url>
+    <loc>/articles/measurement.html</loc>
+  </url>
   <url>
     <loc>/articles/observation.html</loc>
   </url>
   <url>
     <loc>/articles/observation_period.html</loc>
   </url>
+  <url>
+    <loc>/articles/payer_plan_period.html</loc>
+  </url>
   <url>
     <loc>/articles/person.html</loc>
   </url>
diff --git a/vignettes/Condition_occurrence.Rmd b/vignettes/condition_occurrence.Rmd
similarity index 100%
rename from vignettes/Condition_occurrence.Rmd
rename to vignettes/condition_occurrence.Rmd
diff --git a/vignettes/Cost.Rmd b/vignettes/cost.Rmd
similarity index 100%
rename from vignettes/Cost.Rmd
rename to vignettes/cost.Rmd
diff --git a/vignettes/Device_exposure.Rmd b/vignettes/device_exposure.Rmd
similarity index 100%
rename from vignettes/Device_exposure.Rmd
rename to vignettes/device_exposure.Rmd
diff --git a/vignettes/Measurement.Rmd b/vignettes/measurement.Rmd
similarity index 100%
rename from vignettes/Measurement.Rmd
rename to vignettes/measurement.Rmd
diff --git a/vignettes/Payer_plan_period.Rmd b/vignettes/payer_plan_period.Rmd
similarity index 100%
rename from vignettes/Payer_plan_period.Rmd
rename to vignettes/payer_plan_period.Rmd