diff --git a/PackageInfo.g b/PackageInfo.g
index b807f1c..cdbf7c8 100644
--- a/PackageInfo.g
+++ b/PackageInfo.g
@@ -5,8 +5,8 @@ SetPackageInfo( rec(
 
 PackageName := "walrus",
 Subtitle := "A new approach to proving hyperbolicity",
-Version := "0.999",
-Date := "19/12/2019", # dd/mm/yyyy format
+Version := "0.9991",
+Date := "21/02/2022", # dd/mm/yyyy format
 License := "BSD-3-Clause",
 
 Persons := [