diff --git a/Gemfile.lock b/Gemfile.lock
index c5594c52..c8c85656 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -256,7 +256,7 @@ GEM
       rgeo (>= 1.0.0)
     rgeo-geojson (2.1.1)
       rgeo (>= 1.0.0)
-    rgeo-proj4 (2.0.1)
+    rgeo-proj4 (3.0.1)
       rgeo (~> 2.0)
     rgeo-shapefile (3.0.0)
       dbf (~> 4.0)