diff --git a/Gemfile.jruby-3.1.lock.release b/Gemfile.jruby-3.1.lock.release
index 11e44d0a67d..f0c074ca8b2 100644
--- a/Gemfile.jruby-3.1.lock.release
+++ b/Gemfile.jruby-3.1.lock.release
@@ -789,7 +789,7 @@ GEM
       rubocop-ast (>= 1.36.2, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 4.0)
-    rubocop-ast (1.36.2)
+    rubocop-ast (1.42.0)
       parser (>= 3.3.1.0)
     ruby-maven-libs (3.9.9)
     ruby-progressbar (1.13.0)
diff --git a/Gemfile.template b/Gemfile.template
index e9c1bb9ee99..22d8c234c41 100644
--- a/Gemfile.template
+++ b/Gemfile.template
@@ -26,6 +26,8 @@ gem "stud", "~> 0.0.22", :group => :build
 gem "fileutils", "~> 1.7"
 
 gem "rubocop", :group => :development
+# rubocop-ast 1.43.0 carries a dep on `prism` which requires native c extensions
+gem 'rubocop-ast', '= 1.42.0', :group => :development
 gem "belzebuth", :group => :development
 gem "benchmark-ips", :group => :development
 gem "ci_reporter_rspec", "~> 1", :group => :development