diff --git a/test/dl/test_cptr.rb b/test/dl/test_cptr.rb
index a5b37dbb61..aa74a73fe5 100644
--- a/test/dl/test_cptr.rb
+++ b/test/dl/test_cptr.rb
@@ -221,6 +221,6 @@ module DL
   end
 
   def test_no_memory_leak
-    assert_no_memory_leak(%w[-W0 -rdl.so], '', '100_000.times {DL::CPtr.allocate}', limit: 1.2, rss: true)
+    assert_no_memory_leak(%w[-W0 -rdl.so], '', '100_000.times {DL::CPtr.allocate}', rss: true)
   end
 end
diff --git a/test/dl/test_handle.rb b/test/dl/test_handle.rb
index 43fdd4a6d0..6a8964e9a0 100644
--- a/test/dl/test_handle.rb
+++ b/test/dl/test_handle.rb
@@ -186,6 +186,6 @@ module DL
   end
 
   def test_no_memory_leak
-    assert_no_memory_leak(%w[-W0 -rdl.so], '', '100_000.times {DL::Handle.allocate}; GC.start', limit: 1.2, rss: true)
+    assert_no_memory_leak(%w[-W0 -rdl.so], '', '100_000.times {DL::Handle.allocate}; GC.start', rss: true)
   end
 end
diff --git a/test/fiddle/test_handle.rb b/test/fiddle/test_handle.rb
index 0ed3ecd3f1..cde3fa816d 100644
--- a/test/fiddle/test_handle.rb
+++ b/test/fiddle/test_handle.rb
@@ -190,7 +190,7 @@ module Fiddle
     end if /freebsd/=~ RUBY_PLATFORM
 
     def test_no_memory_leak
-      assert_no_memory_leak(%w[-W0 -rfiddle.so], '', '100_000.times {Fiddle::Handle.allocate}; GC.start', limit: 1.2, rss: true)
+      assert_no_memory_leak(%w[-W0 -rfiddle.so], '', '100_000.times {Fiddle::Handle.allocate}; GC.start', rss: true)
     end
   end
 end if defined?(Fiddle)
diff --git a/test/fiddle/test_pointer.rb b/test/fiddle/test_pointer.rb
index 0570424a44..2ba11b4ed7 100644
--- a/test/fiddle/test_pointer.rb
+++ b/test/fiddle/test_pointer.rb
@@ -232,7 +232,7 @@ module Fiddle
     end
 
     def test_no_memory_leak
-      assert_no_memory_leak(%w[-W0 -rfiddle.so], '', '100_000.times {Fiddle::Pointer.allocate}', limit: 1.2, rss: true)
+      assert_no_memory_leak(%w[-W0 -rfiddle.so], '', '100_000.times {Fiddle::Pointer.allocate}', rss: true)
     end
   end
 end if defined?(Fiddle)