diff --git a/docker/Gemfile b/docker/Gemfile
index cd67ec9..b543396 100644
--- a/docker/Gemfile
+++ b/docker/Gemfile
@@ -1,7 +1,7 @@
 source ENV['GEM_SOURCE'] || 'https://rubygems.org'
 
 gem 'vmpooler',                    '~> 3.0'
-gem 'vmpooler-dns-gcp',            '~> 1.0'
+# gem 'vmpooler-dns-gcp',            '~> 1.0'
 # Remove temporarily until a stable minor release is published
 # gem 'vmpooler-provider-ec2',       '~> 0.0.1'
 gem 'vmpooler-provider-gce',       '~> 1.0'
@@ -9,7 +9,7 @@ gem 'vmpooler-provider-vsphere',   '~> 3.0'
 
 # For development install via a git branch use something like:
 # gem 'vmpooler', git: 'https://github.com/puppetlabs/vmpooler.git', branch: 'my-feature'
-# gem 'vmpooler-dns-gcp', git: 'https://github.com/puppetlabs/vmpooler-dns-gcp.git', branch: 'my-feature'
+gem 'vmpooler-dns-gcp', git: 'https://github.com/puppetlabs/vmpooler-dns-gcp.git', branch: 'make_ttl_configurable'
 # gem 'vmpooler-provider-ec2', git: 'https://github.com/puppetlabs/vmpooler-provider-ec2.git', branch: 'my-feature'
 # gem 'vmpooler-provider-gce', git: 'https://github.com/puppetlabs/vmpooler-provider-gce.git', branch: 'my-feature'
 # gem 'vmpooler-provider-vsphere', git: 'https://github.com/puppetlabs/vmpooler-provider-vsphere.git', branch: 'my-feature'
diff --git a/docker/Gemfile.lock b/docker/Gemfile.lock
index f5677db..0c87279 100644
--- a/docker/Gemfile.lock
+++ b/docker/Gemfile.lock
@@ -1,3 +1,13 @@
+GIT
+  remote: https://github.com/puppetlabs/vmpooler-dns-gcp.git
+  revision: eac05efe0396b0669d287ac9be0e929240efc100
+  branch: make_ttl_configurable
+  specs:
+    vmpooler-dns-gcp (1.2.0)
+      google-cloud-dns (~> 0.35.1)
+      googleauth (>= 0.16.2, < 1.3.0)
+      vmpooler (~> 3.0)
+
 GEM
   remote: https://rubygems.org/
   specs:
@@ -119,7 +129,7 @@ GEM
       optimist (~> 3.0)
     redis (5.0.7)
       redis-client (>= 0.9.0)
-    redis-client (0.15.0)
+    redis-client (0.16.0)
       connection_pool
     representable (3.2.0)
       declarative (< 0.1.0)
@@ -166,10 +176,6 @@ GEM
       sinatra (>= 2, < 4)
       spicy-proton (~> 2.1)
       statsd-ruby (~> 1.4)
-    vmpooler-dns-gcp (1.2.0)
-      google-cloud-dns (~> 0.35.1)
-      googleauth (>= 0.16.2, < 1.3.0)
-      vmpooler (~> 3.0)
     vmpooler-provider-gce (1.2.0)
       google-apis-compute_v1 (~> 0.14)
       googleauth (>= 0.16.2, < 1.4.0)
@@ -185,7 +191,7 @@ PLATFORMS
 
 DEPENDENCIES
   vmpooler (~> 3.0)
-  vmpooler-dns-gcp (~> 1.0)
+  vmpooler-dns-gcp!
   vmpooler-provider-gce (~> 1.0)
   vmpooler-provider-vsphere (~> 3.0)