diff --git a/core/complex.rbs b/core/complex.rbs
index 2435b14f3..bc5fcd4f4 100644
--- a/core/complex.rbs
+++ b/core/complex.rbs
@@ -409,8 +409,6 @@ class Complex < Numeric
 
   def divmod: (Numeric) -> bot
 
-  def eql?: (untyped) -> bool
-
   # <!--
   #   rdoc-file=complex.c
   #   - fdiv(numeric) -> new_complex
diff --git a/core/integer.rbs b/core/integer.rbs
index 7edd98655..4e8178e6b 100644
--- a/core/integer.rbs
+++ b/core/integer.rbs
@@ -799,8 +799,6 @@ class Integer < Numeric
   def downto: (Numeric limit) { (Integer) -> void } -> Integer
             | (Numeric limit) -> ::Enumerator[Integer, self]
 
-  def eql?: (untyped) -> bool
-
   # <!--
   #   rdoc-file=numeric.rb
   #   - even? -> true or false
diff --git a/core/module.rbs b/core/module.rbs
index 5ef147f91..e80960b97 100644
--- a/core/module.rbs
+++ b/core/module.rbs
@@ -753,8 +753,6 @@ class Module < Object
   #
   def deprecate_constant: (*interned) -> self
 
-  def eql?: (untyped other) -> bool
-
   def equal?: (untyped other) -> bool
 
   # <!--
diff --git a/core/rational.rbs b/core/rational.rbs
index 34f05fe10..65cb71e22 100644
--- a/core/rational.rbs
+++ b/core/rational.rbs
@@ -242,8 +242,6 @@ class Rational < Numeric
   def divmod: (Integer | Float | Rational) -> [ Integer, Rational ]
             | (Numeric) -> [ Numeric, Numeric ]
 
-  def eql?: (untyped) -> bool
-
   # <!--
   #   rdoc-file=rational.c
   #   - rat.fdiv(numeric)  ->  float
diff --git a/test/stdlib/Integer_test.rb b/test/stdlib/Integer_test.rb
index 973885bdb..1b22893e5 100644
--- a/test/stdlib/Integer_test.rb
+++ b/test/stdlib/Integer_test.rb
@@ -213,11 +213,6 @@ def test_down_to
     30.downto(4.2)
   end
 
-  def test_eql?
-    1.eql?("")
-    3.eql?(1.0)
-  end
-
   def test_even?
     30.even?
   end