diff --git a/doc/CASK_LANGUAGE_REFERENCE.md b/doc/CASK_LANGUAGE_REFERENCE.md
index 5189e938c5de7..d73f48c3c29de 100644
--- a/doc/CASK_LANGUAGE_REFERENCE.md
+++ b/doc/CASK_LANGUAGE_REFERENCE.md
@@ -95,8 +95,7 @@ Each Cask must declare one or more *artifacts* (i.e. something to install)
 
 ## Legacy Stanzas
 
-The following stanzas may be seen in current use but are deprecated
-and slated for retirement.
+The following stanzas are no longer in use.
 
 | name               | multiple occurrences allowed? | meaning     |
 | ------------------ |------------------------------ | ----------- |
@@ -169,8 +168,8 @@ And the following methods may be useful for interpolation:
 
 ## Checksum Stanza Details
 
-Older Casks may still use `no_checksum` stanzas.  This is OK, but new
-Casks and updates should adopt `sha256 :no_check`.
+Casks should no longer use `no_checksum` stanzas.  That form has
+been superseded by `sha256 :no_check`.
 
 
 ## URL Stanza Details
diff --git a/lib/cask/dsl.rb b/lib/cask/dsl.rb
index 555e1577eb358..fd182333f3e7b 100644
--- a/lib/cask/dsl.rb
+++ b/lib/cask/dsl.rb
@@ -140,10 +140,6 @@ def hash_name(hash_type)
     end
 
     def sha256(sha2=nil)
-      # @@@ todo remove this after deleting support for legacy no_checksum stanza
-      if @sums == :no_check
-        raise CaskInvalidError.new(self.title, "'no_checksum' stanza conflicts with 'sha256'")
-      end
       if sha2 == :no_check
         @sums = sha2
       else
@@ -152,14 +148,6 @@ def sha256(sha2=nil)
       end
     end
 
-    # @@@ todo remove support for no_checksum stanza
-    def no_checksum
-      unless @sums.nil? or @sums.empty?
-        raise CaskInvalidError.new(self.title, "'no_checksum' stanza conflicts with '#{hash_name(@sums.first.hash_type)}'")
-      end
-      @sums = :no_check
-    end
-
     def method_missing(method, *args)
       poo = <<-EOPOO.undent
         Unexpected method '#{method}' called on #{self}.
diff --git a/test/cask/dsl_test.rb b/test/cask/dsl_test.rb
index 438cb238c21f6..fb5ef69f42ffb 100644
--- a/test/cask/dsl_test.rb
+++ b/test/cask/dsl_test.rb
@@ -109,20 +109,4 @@ def caveats; <<-EOS.undent
     }.must_raise(CaskInvalidError)
     err.message.must_include "'version' stanza may only appear once"
   end
-
-  # @@@ todo this test can be removed when support for no_checksum is dropped
-  it "prevents defining conflicting checksums (first order)" do
-    err = lambda {
-      invalid_cask = Cask.load('invalid/invalid-checksum-conflict1')
-    }.must_raise(CaskInvalidError)
-    err.message.must_include "'no_checksum' stanza conflicts with"
-  end
-
-  # @@@ todo this test can be removed when support for no_checksum is dropped
-  it "prevents defining conflicting checksums (second order)" do
-    err = lambda {
-      invalid_cask = Cask.load('invalid/invalid-checksum-conflict2')
-    }.must_raise(CaskInvalidError)
-    err.message.must_include "'no_checksum' stanza conflicts with"
-  end
 end
diff --git a/test/support/Casks/invalid/invalid-checksum-conflict1.rb b/test/support/Casks/invalid/invalid-checksum-conflict1.rb
deleted file mode 100644
index 3187c434546a4..0000000000000
--- a/test/support/Casks/invalid/invalid-checksum-conflict1.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class InvalidChecksumConflict1 < TestCask
-  # @@@ todo this test cask can be removed when support for no_checksum is dropped
-  url TestHelper.local_binary('caffeine.zip')
-  homepage 'http://example.com/local-caffeine'
-  version '1.2.3'
-  sha256 '9203c30951f9aab41ac294bbeb1dcef7bed401ff0b353dcb34d68af32ea51853'
-  no_checksum
-  link 'Caffeine.app'
-end
diff --git a/test/support/Casks/invalid/invalid-checksum-conflict2.rb b/test/support/Casks/invalid/invalid-checksum-conflict2.rb
deleted file mode 100644
index ee31f86190c7e..0000000000000
--- a/test/support/Casks/invalid/invalid-checksum-conflict2.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class InvalidChecksumConflict2 < TestCask
-  # @@@ todo this test cask can be removed when support for no_checksum is dropped
-  url TestHelper.local_binary('caffeine.zip')
-  homepage 'http://example.com/local-caffeine'
-  version '1.2.3'
-  no_checksum
-  sha256 '9203c30951f9aab41ac294bbeb1dcef7bed401ff0b353dcb34d68af32ea51853'
-  link 'Caffeine.app'
-end