diff --git a/Gemfile.lock b/Gemfile.lock
index a041c94..bbdef20 100755
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    twitter_ebooks (2.1.0)
+    twitter_ebooks (2.1.1)
       engtagger
       fast-stemmer
       gingerice
@@ -10,7 +10,7 @@ PATH
       minitest
       rufus-scheduler
       tweetstream
-      twitter
+      twitter (~> 4.5)
 
 GEM
   remote: https://rubygems.org/
diff --git a/README.md b/README.md
index 088e860..ce702f8 100755
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# twitter\_ebooks 2.1.1
+# twitter\_ebooks 2.1.2
 
 Complete rewrite of twitter\_ebooks. Allows context-sensitive responsive bots via the Twitter streaming API, along with higher-quality ngram modeling. Still needs a bit of cleaning and documenting.
 
diff --git a/lib/twitter_ebooks/version.rb b/lib/twitter_ebooks/version.rb
index 1cb9366..d2973b8 100755
--- a/lib/twitter_ebooks/version.rb
+++ b/lib/twitter_ebooks/version.rb
@@ -1,3 +1,3 @@
 module Ebooks
-  VERSION = "2.1.1"
+  VERSION = "2.1.2"
 end
diff --git a/twitter_ebooks.gemspec b/twitter_ebooks.gemspec
index 1282770..678b8b9 100755
--- a/twitter_ebooks.gemspec
+++ b/twitter_ebooks.gemspec
@@ -17,8 +17,8 @@ Gem::Specification.new do |gem|
 
   gem.add_runtime_dependency 'minitest'
 
-  gem.add_runtime_dependency 'twitter'
-  gem.add_runtime_dependency 'tweetstream'
+  gem.add_runtime_dependency 'twitter', '~> 4.5'
+  gem.add_runtime_dependency 'tweetstream', '= 2.5'
   gem.add_runtime_dependency 'rufus-scheduler'
   gem.add_runtime_dependency 'gingerice'
   gem.add_runtime_dependency 'htmlentities'