diff --git a/runtest262.mjs b/runtest262.mjs
index f0e5beb4..cbad7017 100644
--- a/runtest262.mjs
+++ b/runtest262.mjs
@@ -33,6 +33,7 @@ yargs(hideBin(process.argv))
       if (nodeVersion < 20) expectedFailureFiles.push('test/expected-failures-before-node20.txt');
       // Eventually this should be fixed and this condition should be updated.
       if (nodeVersion >= 18) expectedFailureFiles.push('test/expected-failures-cldr42.txt');
+      if (nodeVersion >= 20) expectedFailureFiles.push('test/expected-failures-cldr46.txt');
 
       // As we migrate commits from proposal-temporal, remove expected failures from here.
       expectedFailureFiles.push('test/expected-failures-todo-migrated-code.txt');
diff --git a/test/expected-failures-cldr46.txt b/test/expected-failures-cldr46.txt
new file mode 100644
index 00000000..2f34dcf2
--- /dev/null
+++ b/test/expected-failures-cldr46.txt
@@ -0,0 +1,6 @@
+# Failures in this file are expected to fail for all Test262 tests. To record
+# expected test failures for the transpiled or optimized builds of the polyfill,
+# see expected-failures-es5.txt and expected-failures-opt.txt respectively.
+
+# CLDR 46 / ICU 76.1 was backported to Node 20.19 LTS
+staging/Intl402/Temporal/old/non-iso-calendars.js