diff --git a/qa/zcash/postponed-updates.txt b/qa/zcash/postponed-updates.txt
index 6cd530758..239c94b9a 100644
--- a/qa/zcash/postponed-updates.txt
+++ b/qa/zcash/postponed-updates.txt
@@ -5,14 +5,17 @@
 #
 
 bdb 18.1.40 2021-01-20
+
+# We currently pin Rust 1.44.1, and plan to re-evaluate this in 2021 if
+# we haven't already upgraded before then. In the meantime, postpone
+# current and scheduled subsequent releases through the end of the year.
 native_rust 1.45.0 2021-01-20
 native_rust 1.45.1 2021-01-20
 native_rust 1.45.2 2021-01-20
 native_rust 1.46.0 2021-01-20
-
-rust 1.45.0 2021-01-20
-rust 1.45.1 2021-01-20
-rust 1.45.2 2021-01-20
+native_rust 1.47.0 2021-01-20
+native_rust 1.48.0 2021-01-20
+native_rust 1.49.0 2021-01-20
 
 # Google Test 1.10.0 requires adding CMake to the depends system.
 googletest 1.10.0 2021-01-20