diff --git a/snix/Cargo.nix b/snix/Cargo.nix
index ad1df92fe..0f42b38e7 100644
--- a/snix/Cargo.nix
+++ b/snix/Cargo.nix
@@ -14503,7 +14503,7 @@ rec {
       "snix-serde" = rec {
         crateName = "snix-serde";
         version = "0.1.0";
-        edition = "2021";
+        edition = "2024";
         src = lib.cleanSourceWith { filter = sourceFilter; src = ./serde; };
         libName = "snix_serde";
         dependencies = [
diff --git a/snix/serde/Cargo.toml b/snix/serde/Cargo.toml
index fac1c583f..3d0bd90ae 100644
--- a/snix/serde/Cargo.toml
+++ b/snix/serde/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "snix-serde"
 version = "0.1.0"
-edition = "2021"
+edition = "2024"
 
 [dependencies]
 snix-eval = { path = "../eval" }
diff --git a/snix/serde/rustfmt.toml b/snix/serde/rustfmt.toml
new file mode 100644
index 000000000..4dfc1d2b7
--- /dev/null
+++ b/snix/serde/rustfmt.toml
@@ -0,0 +1,2 @@
+# FUTUREWORK: move to .. once all crates are migrated (#114)
+edition = "2024"