diff --git a/Gemfile b/Gemfile
index be30057..66def82 100644
--- a/Gemfile
+++ b/Gemfile
@@ -49,7 +49,7 @@ gem 'bootsnap', '>= 1.4.0', require: false
 # by means of improving the `show-doc` and `show-source` commands.
 # With help of the plugin the commands are be able to display the source code
 # and the docs of Ruby methods and classes implemented in C.
-gem 'pry-doc', '~> 1.0'
+gem 'pry-doc', '= 1.0.0', github: 'pry/pry-doc'
 
 # Use Pry as your Rails console.
 gem 'pry-rails', '~> 0.3'
diff --git a/Gemfile.lock b/Gemfile.lock
index d5cc0c6..f7bb76d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,3 +1,11 @@
+GIT
+  remote: https://github.com/pry/pry-doc.git
+  revision: ee0b698588a63c693a50d42e4038b4a675715347
+  specs:
+    pry-doc (1.0.0)
+      pry (~> 0.11)
+      yard (~> 0.9.11)
+
 GIT
   remote: https://github.com/rack/rack.git
   revision: f83d84117724ff55b7e7bab32439394513d67ea2
@@ -296,9 +304,6 @@ GEM
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    pry-doc (1.0.0)
-      pry (~> 0.11)
-      yard (~> 0.9.11)
     pry-rails (0.3.9)
       pry (>= 0.10.4)
     public_suffix (4.0.3)
@@ -518,7 +523,7 @@ DEPENDENCIES
   omniauth-github (~> 1.3)
   omniauth-rails_csrf_protection (~> 0.1)
   pg (~> 1.1)
-  pry-doc (~> 1.0)
+  pry-doc (= 1.0.0)!
   pry-rails (~> 0.3)
   puma (~> 4.2)
   pundit (~> 2.1)