diff --git a/TestGrid.md b/TestGrid.md
index 5957bbe..88ad812 100644
--- a/TestGrid.md
+++ b/TestGrid.md
@@ -4,7 +4,7 @@
 
 The test grid is subject to being updated at random times, so compatibility is likely to break without notice. Also note that many upgrades require all files and directories to be flushed, especially as storage formats change.
 
-The test grid is currently running v0.6.0-34 or so (note that this is incompatible with the 0.5.1 release).
+The test grid is currently running v0.6.0-34 or so (note that this is incompatible with the previous 0.5.1 release).
 
 After installing the code according to the [README]source:README, set up a client node with the following files in its base directory: