diff --git a/mix.exs b/mix.exs
index 4306032..dec8575 100644
--- a/mix.exs
+++ b/mix.exs
@@ -3,7 +3,7 @@ defmodule PrometheusProcessCollector.Mixfile do
 
   def project do
     [app: :prometheus_process_collector,
-     version: "1.0.0-alpha8",
+     version: "1.0.0-alpha9",
      description: description,
      package: package,
      deps: deps]
diff --git a/rebar.config b/rebar.config
index 52d3dd1..edd0324 100644
--- a/rebar.config
+++ b/rebar.config
@@ -1,5 +1,5 @@
 {erl_opts, [debug_info]}.
-{deps, [{prometheus, "3.0.0-alpha6"}]}.
+{deps, [{prometheus, "3.0.0-alpha9"}]}.
 
 {pre_hooks,
  [{"linux", compile, "make -C c_src"}]}.
diff --git a/src/prometheus_process_collector.app.src b/src/prometheus_process_collector.app.src
index d38a5bc..3eeb8d8 100644
--- a/src/prometheus_process_collector.app.src
+++ b/src/prometheus_process_collector.app.src
@@ -2,7 +2,7 @@
  [{description, "Prometheus.io process collector
     Collector exports the current state of process metrics including cpu, memory,
     file descriptor usage and native threads count as well as the process start and up times."},
-  {vsn, "1.0.0-alpha8"},
+  {vsn, "1.0.0-alpha9"},
   {registered, []},
   {applications,
    [kernel,