diff --git a/steep/Gemfile.lock b/steep/Gemfile.lock
index 656581dac..d0d2994ec 100644
--- a/steep/Gemfile.lock
+++ b/steep/Gemfile.lock
@@ -70,7 +70,7 @@ GEM
       strscan (>= 1.0.0)
       terminal-table (>= 2, < 5)
       uri (>= 0.12.0)
-    strscan (3.1.3)
+    strscan (3.1.5)
     terminal-table (4.0.0)
       unicode-display_width (>= 1.1.1, < 4)
     test-unit (3.6.8)