diff --git a/src/flake8_pytest_style/plugins/unittest_assert.rs b/src/flake8_pytest_style/plugins/unittest_assert.rs
index f7ec89697f..63f7a3b814 100644
--- a/src/flake8_pytest_style/plugins/unittest_assert.rs
+++ b/src/flake8_pytest_style/plugins/unittest_assert.rs
@@ -30,7 +30,6 @@ pub enum UnittestAssert {
     MultiLineEqual,
     NotAlmostEqual,
     NotAlmostEquals,
-    NotContains,
     NotEqual,
     NotEquals,
     NotIn,
@@ -73,7 +72,6 @@ impl std::fmt::Display for UnittestAssert {
             UnittestAssert::MultiLineEqual => write!(f, "assertMultiLineEqual"),
             UnittestAssert::NotAlmostEqual => write!(f, "assertNotAlmostEqual"),
             UnittestAssert::NotAlmostEquals => write!(f, "assertNotAlmostEquals"),
-            UnittestAssert::NotContains => write!(f, "assertNotContains"),
             UnittestAssert::NotEqual => write!(f, "assertNotEqual"),
             UnittestAssert::NotEquals => write!(f, "assertNotEquals"),
             UnittestAssert::NotIn => write!(f, "assertNotIn"),
@@ -120,7 +118,6 @@ impl TryFrom<&str> for UnittestAssert {
             "assertMultiLineEqual" => Ok(UnittestAssert::MultiLineEqual),
             "assertNotAlmostEqual" => Ok(UnittestAssert::NotAlmostEqual),
             "assertNotAlmostEquals" => Ok(UnittestAssert::NotAlmostEquals),
-            "assertNotContains" => Ok(UnittestAssert::NotContains),
             "assertNotEqual" => Ok(UnittestAssert::NotEqual),
             "assertNotEquals" => Ok(UnittestAssert::NotEquals),
             "assertNotIn" => Ok(UnittestAssert::NotIn),
@@ -203,7 +200,6 @@ impl UnittestAssert {
             UnittestAssert::MultiLineEqual => Arguments::new(vec!["first", "second"], vec!["msg"]),
             UnittestAssert::NotAlmostEqual => Arguments::new(vec!["first", "second"], vec!["msg"]),
             UnittestAssert::NotAlmostEquals => Arguments::new(vec!["first", "second"], vec!["msg"]),
-            UnittestAssert::NotContains => Arguments::new(vec!["container", "member"], vec!["msg"]),
             UnittestAssert::NotEqual => Arguments::new(vec!["first", "second"], vec!["msg"]),
             UnittestAssert::NotEquals => Arguments::new(vec!["first", "second"], vec!["msg"]),
             UnittestAssert::NotIn => Arguments::new(vec!["member", "container"], vec!["msg"]),