diff --git a/Gemfile.lock b/Gemfile.lock
index e3f86ac..d6c98c9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,8 +9,10 @@ GEM
     ffi-inline (0.0.4.3)
       ffi (>= 0.4.0)
     iso-639 (0.2.5)
+    pkg-config (1.5.6)
     refining (0.0.5.5)
-    rmagick (2.15.2)
+    rmagick (5.3.0)
+      pkg-config (~> 1.4)
     tesseract-ocr (0.1.7)
       call-me
       ffi-extra