diff --git a/Gemfile b/Gemfile
index 9778e9fd..c5059ce5 100644
--- a/Gemfile
+++ b/Gemfile
@@ -17,8 +17,8 @@ gem 'connection_pool'
 gem 'dalli'
 gem 'jemalloc', git: gh('joshk/jemalloc-rb')
 gem 'jwt'
-gem 'metriks'
-gem 'metriks-librato_metrics'
+gem 'metriks', git: gh('travis-ci/metriks'), branch: 'igor-hdr-histogram'
+gem 'metriks-librato_metrics', git: gh('travis-ci/metriks-librato_metrics'), branch: 'igor-hdr-histogram'
 gem 'multi_json'
 gem 'oj'
 gem 'pg'
diff --git a/Gemfile.lock b/Gemfile.lock
index 0c810c0d..adf81417 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -4,6 +4,25 @@ GIT
   specs:
     jemalloc (1.4.5)
 
+GIT
+  remote: https://github.com/travis-ci/metriks-librato_metrics.git
+  revision: 7ec1c97f4f6f783d2a04c7922baac98a9fbbba25
+  branch: igor-hdr-histogram
+  specs:
+    metriks-librato_metrics (1.0.6)
+      metriks (>= 0.9.9.6)
+
+GIT
+  remote: https://github.com/travis-ci/metriks.git
+  revision: 9b5a34fecebecc741417b25e43c340394aa6cc5e
+  branch: igor-hdr-histogram
+  specs:
+    metriks (0.9.9.8)
+      HDRHistogram (~> 0.1.3)
+      atomic (~> 1.0)
+      avl_tree (~> 1.2.0)
+      hitimes (~> 1.1)
+
 GIT
   remote: https://github.com/travis-ci/travis-exceptions.git
   revision: 71b11939f1f3b86d1e2fd94f3b9b8f78af290e12
@@ -25,14 +44,15 @@ GIT
 
 GIT
   remote: https://github.com/travis-ci/travis-metrics.git
-  revision: 37eac93bd1e9bd949a9842f28154c335ebeda42a
+  revision: 4bdac5f6d71425ed7ab1f775535db47e84fd141f
   specs:
-    travis-metrics (0.0.1)
+    travis-metrics (2.0.0)
       metriks-librato_metrics (~> 1.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
+    HDRHistogram (0.1.3)
     activesupport (5.1.2)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (~> 0.7)
@@ -64,19 +84,13 @@ GEM
     faraday (0.12.2)
       multipart-post (>= 1.2, < 3)
     hashr (2.0.1)
-    hitimes (1.2.5)
+    hitimes (1.2.6)
     httpclient (2.8.3)
     i18n (0.8.6)
     jmespath (1.3.1)
     json (2.1.0)
     jwt (1.5.6)
     method_source (0.8.2)
-    metriks (0.9.9.8)
-      atomic (~> 1.0)
-      avl_tree (~> 1.2.0)
-      hitimes (~> 1.1)
-    metriks-librato_metrics (1.0.6)
-      metriks (>= 0.9.9.6)
     minitest (5.10.3)
     multi_json (1.12.1)
     multipart-post (2.0.0)
@@ -180,8 +194,8 @@ DEPENDENCIES
   dalli
   jemalloc!
   jwt
-  metriks
-  metriks-librato_metrics
+  metriks!
+  metriks-librato_metrics!
   multi_json
   oj
   pg
@@ -209,4 +223,4 @@ DEPENDENCIES
   travis-metrics!
 
 BUNDLED WITH
-   1.15.2
+   1.16.0