diff --git a/Gemfile b/Gemfile
index 487ab38..9432754 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,5 +12,5 @@ gem "rubocop"
 gem "rubocop-rake"
 gem "rubocop-rspec"
 gem "simplecov", require: false, group: :test
-gem "strscan", "~> 3.1.0" # Required by REXML, which is a dependency of RuboCop
+gem "strscan", "~> 1", "< 3" # Required by REXML, which is a dependency of RuboCop. There's a bug on v3 preventing it from building on arm64
 gem "tty-prompt"
diff --git a/Gemfile.lock b/Gemfile.lock
index b9f95df..e7c1182 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -25,7 +25,8 @@ GEM
     rainbow (3.1.1)
     rake (13.2.1)
     regexp_parser (2.9.2)
-    rexml (3.2.6)
+    rexml (3.3.0)
+      strscan
     rspec (3.13.0)
       rspec-core (~> 3.13.0)
       rspec-expectations (~> 3.13.0)
@@ -63,7 +64,7 @@ GEM
       simplecov_json_formatter (~> 0.1)
     simplecov-html (0.12.3)
     simplecov_json_formatter (0.1.4)
-    strscan (3.1.0)
+    strscan (1.0.3)
     tty-color (0.6.0)
     tty-cursor (0.7.1)
     tty-prompt (0.23.1)
@@ -93,7 +94,7 @@ DEPENDENCIES
   rubocop-rake
   rubocop-rspec
   simplecov
-  strscan (~> 3.1.0)
+  strscan (~> 1, < 3)
   tty-prompt
 
 BUNDLED WITH