diff --git a/tools/memory-model/README b/tools/memory-model/README
index 0b3a5f3c9ccddd2d0925cd90214600181b4e1968..734f7feaa5dc59f294bc351416aa370024d4818c 100644
--- a/tools/memory-model/README
+++ b/tools/memory-model/README
@@ -20,7 +20,7 @@ that litmus test to be exercised within the Linux kernel.
 REQUIREMENTS
 ============
 
-Version 7.48 of the "herd7" and "klitmus7" tools must be downloaded
+Version 7.49 of the "herd7" and "klitmus7" tools must be downloaded
 separately:
 
   https://github.com/herd/herdtools7