diff --git a/Project.toml b/Project.toml
index 623fb1a..562c353 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "StatGeochem"
 uuid = "df4de05a-b714-11e8-3c2a-c30fb13e804c"
 authors = ["C. Brenhin Keller <cbkeller@berkeley.edu>"]
-version = "0.5.21"
+version = "0.5.22"
 
 [deps]
 Colors = "5ae59095-9a9b-59fe-a467-6f913c188581"