diff --git a/Gemfile.lock b/Gemfile.lock
index a5eb40a..8ead2aa 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -65,7 +65,7 @@ GEM
       temple (>= 0.8.2)
       thor
       tilt
-    hexapdf (1.0.0)
+    hexapdf (1.0.1)
       cmdparse (~> 3.0, >= 3.0.3)
       geom2d (~> 0.4, >= 0.4.1)
       openssl (>= 2.2.1)