diff --git a/crates/ruff_linter/src/codes.rs b/crates/ruff_linter/src/codes.rs
index 081a384f5b..a4a5d8de8b 100644
--- a/crates/ruff_linter/src/codes.rs
+++ b/crates/ruff_linter/src/codes.rs
@@ -386,7 +386,7 @@ pub fn code_to_rule(linter: Linter, code: &str) -> Option<(RuleGroup, Rule)> {
         (Flake8Comprehensions, "17") => (RuleGroup::Stable, rules::flake8_comprehensions::rules::UnnecessaryMap),
         (Flake8Comprehensions, "18") => (RuleGroup::Stable, rules::flake8_comprehensions::rules::UnnecessaryLiteralWithinDictCall),
         (Flake8Comprehensions, "19") => (RuleGroup::Stable, rules::flake8_comprehensions::rules::UnnecessaryComprehensionInCall),
-        (Flake8Comprehensions, "20") => (RuleGroup::Preview, rules::flake8_comprehensions::rules::UnnecessaryDictComprehensionForIterable),
+        (Flake8Comprehensions, "20") => (RuleGroup::Stable, rules::flake8_comprehensions::rules::UnnecessaryDictComprehensionForIterable),
 
         // flake8-debugger
         (Flake8Debugger, "0") => (RuleGroup::Stable, rules::flake8_debugger::rules::Debugger),