diff --git a/Puppetfile b/Puppetfile
index a286f33..c4e67e8 100644
--- a/Puppetfile
+++ b/Puppetfile
@@ -9,7 +9,7 @@ mod 'puppetlabs-puppetdb', '8.1.0'
 # These modules are all dependencies for puppetdb.
 mod 'puppetlabs-inifile', '6.5.0'
 mod 'puppetlabs-postgresql', '10.6.3'
-mod 'puppetlabs-concat', '10.0.1'
+mod 'puppetlabs-concat', '10.1.0'
 mod 'puppetlabs-firewall', '8.6.0'
 
 # r10k gives us dynamic Puppet environments.