diff --git a/Gemfile.lock b/Gemfile.lock
index 4a73cf935..b44aa4bcc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,7 +9,7 @@ PATH
       constant_resolver (>= 0.2.0)
       parallel
       parser
-      prism (>= 0.20.0)
+      prism (>= 0.21.0)
       sorbet-runtime (>= 0.5.9914)
       zeitwerk (>= 2.6.1)
 
@@ -74,7 +74,7 @@ GEM
     parser (3.2.2.0)
       ast (~> 2.4.1)
     prettier_print (0.1.0)
-    prism (0.20.0)
+    prism (0.21.0)
     pry (0.14.1)
       coderay (~> 1.1)
       method_source (~> 1.0)
diff --git a/packwerk.gemspec b/packwerk.gemspec
index 6698a6585..f688cf424 100644
--- a/packwerk.gemspec
+++ b/packwerk.gemspec
@@ -50,7 +50,7 @@ Gem::Specification.new do |spec|
   # For Ruby parsing
   spec.add_dependency("ast")
   spec.add_dependency("parser")
-  spec.add_dependency("prism", ">= 0.20.0")
+  spec.add_dependency("prism", ">= 0.21.0")
 
   # For ERB parsing
   spec.add_dependency("better_html")