gpg version parsing failure on Windows

Caused by: java.lang.IllegalArgumentException: Can't parse version of
gpg (GnuPG) 2.0.26 (Gpg4win 2.2.3)
    at org.apache.maven.plugins.gpg.GpgVersion.compareTo(GpgVersion.java:60)
    at org.apache.maven.plugins.gpg.GpgVersion.isBefore(GpgVersion.java:101)
    at org.apache.maven.plugins.gpg.GpgSigner.generateSignatureForFile(GpgSigner.java:89)
    at org.apache.maven.plugins.gpg.AbstractGpgSigner.generateSignatureForArtifact(AbstractGpgSigner.java:203)
    at org.apache.maven.plugins.gpg.GpgSignAttachedMojo.execute(GpgSignAttachedMojo.java:178)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)

$ gpg --version
gpg (GnuPG) 2.0.26 (Gpg4win 2.2.3)
libgcrypt 1.6.2
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
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