diff --git a/.pick_status.json b/.pick_status.json
index 71ab2d5daab..d5a514d8fd4 100644
--- a/.pick_status.json
+++ b/.pick_status.json
@@ -644,7 +644,7 @@
         "description": "rust: build `ucd-trie` dependency with the correct edition",
         "nominated": true,
         "nomination_type": 2,
-        "resolution": 0,
+        "resolution": 1,
         "main_sha": null,
         "because_sha": "e28ff818695ca953b31ec15d1f371b64a4ff9e3d",
         "notes": null
diff --git a/subprojects/packagefiles/ucd-trie-0.1-rs/meson.build b/subprojects/packagefiles/ucd-trie-0.1-rs/meson.build
index e8b14387d4a..20ba4d9d02c 100644
--- a/subprojects/packagefiles/ucd-trie-0.1-rs/meson.build
+++ b/subprojects/packagefiles/ucd-trie-0.1-rs/meson.build
@@ -8,7 +8,7 @@ project(
 lib = static_library(
   'ucd_trie',
   'src/lib.rs',
-  override_options : ['rust_std=2018', 'build.rust_std=2018'],
+  override_options : ['rust_std=2021', 'build.rust_std=2021'],
   rust_abi : 'rust',
   native : true,
 )