diff --git a/config/settings-development.yml b/config/settings-development.yml
index a46fa1ac..c96f6a7d 100644
--- a/config/settings-development.yml
+++ b/config/settings-development.yml
@@ -7,7 +7,7 @@ logo_url: "http://proceedings.juliacon.org/logo_large.jpg"
 url: "https://proceedings.juliacon.org"
 editor_email: "admin@theoj.org"
 noreply_email: "admin@theoj.org"
-launch_date: "2019"
+launch_date: "2019-06-01"
 twitter: "@juliaconorg"
 mastodon_url: "FIXME"
 google_analytics: "UA-47852178-9"
diff --git a/config/settings-production.yml b/config/settings-production.yml
index 1e1cff6a..8a32907c 100644
--- a/config/settings-production.yml
+++ b/config/settings-production.yml
@@ -7,7 +7,7 @@ logo_url: "http://proceedings.juliacon.org/logo_large.jpg"
 url: "https://proceedings.juliacon.org"
 editor_email: "juliacon@julialang.org"
 noreply_email: "juliacon@julialang.org"
-launch_date: "2019"
+launch_date: "2019-06-01"
 twitter: "@juliaconorg"
 mastodon_url: "FIXME"
 google_analytics: "UA-47852178-9"
diff --git a/config/settings-test.yml b/config/settings-test.yml
index acf7b5f7..d3321bb1 100644
--- a/config/settings-test.yml
+++ b/config/settings-test.yml
@@ -7,7 +7,7 @@ logo_url: "http://proceedings.juliacon.org/logo_large.jpg"
 url: "https://proceedings.juliacon.org"
 editor_email: "admin@theoj.org"
 noreply_email: "admin@theoj.org"
-launch_date: "2019"
+launch_date: "2019-06-01"
 twitter: "@juliaconorg"
 mastodon_url: "FIXME"
 google_analytics: "UA-47852178-9"