diff --git a/manifests/c/ChemAxon/Marvin/21.3/ChemAxon.Marvin.yaml b/manifests/c/ChemAxon/Marvin/21.3/ChemAxon.Marvin.yaml
deleted file mode 100644
index 7926d7c40..000000000
--- a/manifests/c/ChemAxon/Marvin/21.3/ChemAxon.Marvin.yaml
+++ /dev/null
@@ -1,39 +0,0 @@
-PackageIdentifier: ChemAxon.Marvin
-PackageName: Marvin
-Publisher: ChemAxon
-Author: ChemAxon
-ShortDescription: a chemically intelligent desktop toolkit built to help you draw, edit, publish, render, import and export your chemical structures and as well as allowing you to convert between various chemical and graphical file formats.
-Tags:
-- chemistry
-- organic chemistry
-- chemdraw
-- molecule
-- java
-FileExtensions:
-- mrv
-- cxsmiles
-- cxsmi
-- cxsmarts
-- cxsma
-- abbrevgroup
-- csmol
-- csrxn
-- cssdf
-- t
-- csrdf
-- mol
-PackageUrl: https://chemaxon.com/products/marvin
-License: Copyright (C) ChemAxon
-PackageVersion: 21.3
-InstallerType: exe
-Installers:
-- Architecture: x64
-  InstallerUrl: https://dl.chemaxon.com/marvin/21.3.0/marvin_windows-x64_21.3_openjdk11.exe
-  InstallerSha256: 6becc992b948e35682936624175372702649080aed29f0b06f167a09340c574b
-  InstallerLocale: en-US
-  InstallerSwitches:
-    Silent: -q
-    SilentWithProgress: -q
-PackageLocale: en-US
-ManifestType: singleton
-ManifestVersion: 1.0.0