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-rw-r--r--compiler/rustc_graphviz/Cargo.toml2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_graphviz/Cargo.toml b/compiler/rustc_graphviz/Cargo.toml
index 87c41ae171e..d657fdb1a77 100644
--- a/compiler/rustc_graphviz/Cargo.toml
+++ b/compiler/rustc_graphviz/Cargo.toml
@@ -1,4 +1,4 @@
 [package]
 name = "rustc_graphviz"
 version = "0.0.0"
-edition = "2018"
+edition = "2021"