diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index 1a3028803..bbb0b6c9c 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -7,7 +7,7 @@ This file contains a high-level description of this package's evolution. Release
 
 ## 4.9.3 - TBD
 
-* Support HDF5 transient types when reading an HDF5 file.  See [Github #????](https://github.com/Unidata/netcdf-c/pull/????).
+* Support HDF5 transient types when reading an HDF5 file.  See [Github #2724](https://github.com/Unidata/netcdf-c/pull/2724).
 * Suppress filters on variables with non-fixed-size types. See [Github #2716](https://github.com/Unidata/netcdf-c/pull/2716).
 * Provide a single option to disable all network access and testing. See [Github #2708](https://github.com/Unidata/netcdf-c/pull/2708).
 * Fix some problems with earthdata authorization and data access. See [Github #2709](https://github.com/Unidata/netcdf-c/pull/2709).