diff --git a/Gemfile.lock b/Gemfile.lock
index 5a938bd..058c38a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,13 +2,13 @@ PATH
   remote: .
   specs:
     geocoder_here_maps (0.2.0)
-      geocoder (~> 1.5.1)
+      geocoder (>= 1.5.1, < 1.7.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
     diff-lcs (1.3)
-    geocoder (1.5.1)
+    geocoder (1.6.3)
     rake (10.5.0)
     rspec (3.8.0)
       rspec-core (~> 3.8.0)
diff --git a/geocoder_here_maps.gemspec b/geocoder_here_maps.gemspec
index dd2abf8..73febc2 100644
--- a/geocoder_here_maps.gemspec
+++ b/geocoder_here_maps.gemspec
@@ -26,5 +26,5 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "rake", "~> 10.0"
   spec.add_development_dependency "rspec", "~> 3.0"
 
-  spec.add_dependency "geocoder", "~> 1.5.1"
+  spec.add_dependency "geocoder", ">= 1.5.1", "< 1.7.0"
 end