diff --git a/crates/ruff_linter/src/codes.rs b/crates/ruff_linter/src/codes.rs
index 2d8103c3ec57c9..3431a8f1ba6fae 100644
--- a/crates/ruff_linter/src/codes.rs
+++ b/crates/ruff_linter/src/codes.rs
@@ -871,7 +871,7 @@ pub fn code_to_rule(linter: Linter, code: &str) -> Option<(RuleGroup, Rule)> {
         (Flake8TypeChecking, "003") => (RuleGroup::Stable, rules::flake8_type_checking::rules::TypingOnlyStandardLibraryImport),
         (Flake8TypeChecking, "004") => (RuleGroup::Stable, rules::flake8_type_checking::rules::RuntimeImportInTypeCheckingBlock),
         (Flake8TypeChecking, "005") => (RuleGroup::Stable, rules::flake8_type_checking::rules::EmptyTypeCheckingBlock),
-        (Flake8TypeChecking, "006") => (RuleGroup::Preview, rules::flake8_type_checking::rules::RuntimeCastValue),
+        (Flake8TypeChecking, "006") => (RuleGroup::Stable, rules::flake8_type_checking::rules::RuntimeCastValue),
         (Flake8TypeChecking, "007") => (RuleGroup::Stable, rules::flake8_type_checking::rules::UnquotedTypeAlias),
         (Flake8TypeChecking, "008") => (RuleGroup::Preview, rules::flake8_type_checking::rules::QuotedTypeAlias),
         (Flake8TypeChecking, "010") => (RuleGroup::Stable, rules::flake8_type_checking::rules::RuntimeStringUnion),