diff --git a/lib/tapioca/dsl/compilers/active_support_concern.rb b/lib/tapioca/dsl/compilers/active_support_concern.rb
index 2b7a723cf..9f9e65634 100644
--- a/lib/tapioca/dsl/compilers/active_support_concern.rb
+++ b/lib/tapioca/dsl/compilers/active_support_concern.rb
@@ -68,10 +68,14 @@ class << self
           #: -> T::Enumerable[Module]
           def gather_constants
             all_modules.select do |mod|
-              name_of(mod) && # i.e. not anonymous
-                !mod.singleton_class? &&
-                ActiveSupport::Concern > mod.singleton_class &&
-                has_dependencies?(mod)
+              begin
+                name_of(mod) && # i.e. not anonymous
+                  !mod.singleton_class? &&
+                  ActiveSupport::Concern > mod.singleton_class &&
+                  has_dependencies?(mod)
+              rescue ActiveSupport::DeprecationException
+                false
+              end
             end
           end
 
diff --git a/lib/tapioca/dsl/compilers/mixed_in_class_attributes.rb b/lib/tapioca/dsl/compilers/mixed_in_class_attributes.rb
index cf607b269..7a0d113c5 100644
--- a/lib/tapioca/dsl/compilers/mixed_in_class_attributes.rb
+++ b/lib/tapioca/dsl/compilers/mixed_in_class_attributes.rb
@@ -67,7 +67,13 @@ class << self
           def gather_constants
             # Select all non-anonymous modules that have overridden Module.included
             all_modules.select do |mod|
-              !mod.is_a?(Class) && name_of(mod) && Runtime::Reflection.method_of(mod, :included).owner != Module
+              begin
+                !mod.is_a?(Class) &&
+                  name_of(mod) &&
+                  Runtime::Reflection.method_of(mod, :included).owner != Module
+              rescue ActiveSupport::DeprecationException
+                false
+              end
             end
           end
         end
diff --git a/lib/tapioca/dsl/compilers/url_helpers.rb b/lib/tapioca/dsl/compilers/url_helpers.rb
index a954046ae..effc810f0 100644
--- a/lib/tapioca/dsl/compilers/url_helpers.rb
+++ b/lib/tapioca/dsl/compilers/url_helpers.rb
@@ -114,18 +114,22 @@ def gather_constants
             Object.const_set(:GeneratedPathHelpersModule, path_helpers_module)
 
             constants = all_modules.select do |mod|
-              next unless name_of(mod)
-
-              # Fast-path to quickly disqualify most cases
-              next false unless url_helpers_module > mod || # rubocop:disable Style/InvertibleUnlessCondition
-                path_helpers_module > mod ||
-                url_helpers_module > mod.singleton_class ||
-                path_helpers_module > mod.singleton_class
-
-              includes_helper?(mod, url_helpers_module) ||
-                includes_helper?(mod, path_helpers_module) ||
-                includes_helper?(mod.singleton_class, url_helpers_module) ||
-                includes_helper?(mod.singleton_class, path_helpers_module)
+              begin
+                next unless name_of(mod)
+
+                # Fast-path to quickly disqualify most cases
+                next false unless url_helpers_module > mod || # rubocop:disable Style/InvertibleUnlessCondition
+                  path_helpers_module > mod ||
+                  url_helpers_module > mod.singleton_class ||
+                  path_helpers_module > mod.singleton_class
+
+                includes_helper?(mod, url_helpers_module) ||
+                  includes_helper?(mod, path_helpers_module) ||
+                  includes_helper?(mod.singleton_class, url_helpers_module) ||
+                  includes_helper?(mod.singleton_class, path_helpers_module)
+              rescue ActiveSupport::DeprecationException
+                next false
+              end
             end
 
             constants.concat(NON_DISCOVERABLE_INCLUDERS).push(GeneratedUrlHelpersModule, GeneratedPathHelpersModule)
diff --git a/spec/tapioca/dsl/compilers/active_support_concern_spec.rb b/spec/tapioca/dsl/compilers/active_support_concern_spec.rb
index 2b46844e5..906529940 100644
--- a/spec/tapioca/dsl/compilers/active_support_concern_spec.rb
+++ b/spec/tapioca/dsl/compilers/active_support_concern_spec.rb
@@ -14,6 +14,45 @@ def before_setup
           end
 
           describe "gather_constants" do
+            it "ignores modules that raise ActiveSupport::DeprecationException" do
+              add_ruby_file("deprecated_case.rb", <<~RUBY)
+                module TestCase
+                  module Foo
+                    extend ActiveSupport::Concern
+                  end
+
+                  # This module will simulate a deprecated constant that raises when inspected
+                  module DeprecatedMod
+                  end
+
+                  module Bar
+                    extend ActiveSupport::Concern
+                    include Foo
+                  end
+                end
+              RUBY
+
+              # Stub name_of to raise for our specific deprecated module and verify no crash
+              compiler = Tapioca::Dsl::Compilers::ActiveSupportConcern
+              original = Tapioca::Dsl::Compiler.method(:name_of)
+              begin
+                def compiler.name_of(mod)
+                  if mod == TestCase::DeprecatedMod
+                    raise ActiveSupport::DeprecationException
+                  else
+                    Tapioca::Dsl::Compiler.method(:name_of).call(mod)
+                  end
+                end
+
+                # Presence of DeprecatedMod should not cause crashes; Bar is the only gatherable constant
+                assert_equal(["TestCase::Bar"], gathered_constants_in_namespace(:TestCase))
+              ensure
+                # Restore original implementation
+                def compiler.name_of(mod)
+                  original.call(mod)
+                end
+              end
+            end
             it "does not gather anonymous constants" do
               add_ruby_file("test_case.rb", <<~RUBY)
                 module TestCase
diff --git a/spec/tapioca/dsl/compilers/mixed_in_class_attributes_spec.rb b/spec/tapioca/dsl/compilers/mixed_in_class_attributes_spec.rb
index 7b41c089a..27f5f607e 100644
--- a/spec/tapioca/dsl/compilers/mixed_in_class_attributes_spec.rb
+++ b/spec/tapioca/dsl/compilers/mixed_in_class_attributes_spec.rb
@@ -19,6 +19,40 @@ def before_setup
           end
 
           describe "gather_constants" do
+            it "ignores modules that raise ActiveSupport::DeprecationException" do
+              add_ruby_file("file.rb", <<~RUBY)
+                module ManualIncluded
+                  def self.included(base); end
+                end
+
+                module Concern
+                  extend ActiveSupport::Concern
+                end
+
+                module DeprecatedMod
+                end
+              RUBY
+
+              compiler = Tapioca::Dsl::Compilers::MixedInClassAttributes
+              original = Tapioca::Dsl::Compiler.method(:name_of)
+              begin
+                def compiler.name_of(mod)
+                  if mod == DeprecatedMod
+                    raise ActiveSupport::DeprecationException
+                  else
+                    Tapioca::Dsl::Compiler.method(:name_of).call(mod)
+                  end
+                end
+
+                assert_includes(gathered_constants, "ManualIncluded")
+                assert_includes(gathered_constants, "Concern")
+                refute_includes(gathered_constants, "DeprecatedMod")
+              ensure
+                def compiler.name_of(mod)
+                  original.call(mod)
+                end
+              end
+            end
             it "gathers modules that respond to class_attribute" do
               add_ruby_file("file.rb", <<~RUBY)
                 module ManualIncluded
diff --git a/spec/tapioca/dsl/compilers/url_helpers_spec.rb b/spec/tapioca/dsl/compilers/url_helpers_spec.rb
index c060e4029..cd1d76dcc 100644
--- a/spec/tapioca/dsl/compilers/url_helpers_spec.rb
+++ b/spec/tapioca/dsl/compilers/url_helpers_spec.rb
@@ -14,6 +14,39 @@ def before_setup
           end
 
           describe "initialize" do
+            it "ignores modules that raise ActiveSupport::DeprecationException" do
+              add_ruby_file("content.rb", <<~RUBY)
+                class Application < Rails::Application
+                end
+
+                module DeprecatedMod
+                end
+              RUBY
+
+              compiler = Tapioca::Dsl::Compilers::UrlHelpers
+              original = Tapioca::Dsl::Compiler.method(:name_of)
+              begin
+                def compiler.name_of(mod)
+                  if mod == DeprecatedMod
+                    raise ActiveSupport::DeprecationException
+                  else
+                    Tapioca::Dsl::Compiler.method(:name_of).call(mod)
+                  end
+                end
+
+                assert_equal(
+                  [
+                    "GeneratedPathHelpersModule",
+                    "GeneratedUrlHelpersModule",
+                  ],
+                  gathered_constants,
+                )
+              ensure
+                def compiler.name_of(mod)
+                  original.call(mod)
+                end
+              end
+            end
             it "does not gather constants when url_helpers is not included" do
               add_ruby_file("content.rb", <<~RUBY)
                 class Application < Rails::Application