diff --git a/tbprofiler/6.4.1/README.md b/tbprofiler/6.4.1/README.md
index dbb1e1b78..ccad82606 100644
--- a/tbprofiler/6.4.1/README.md
+++ b/tbprofiler/6.4.1/README.md
@@ -38,7 +38,7 @@ tbdb    2c92475 Jody Phelan <jody.phelan@lshtm.ac.uk>   Mon Oct 7 17:06:42 2024
 - parallel 20240922
 - samclip 0.4.0
 - snpeff 5.2
-- delly 1.2.6 (the more recent version 1.3.1 did not allow for the conda environment to resolve. More info here: https://github.com/jodyphelan/TBProfiler/issues/393#issuecomment-2452076859)
+- delly 1.2.6 (the more recent version 1.3.1 did not allow for the conda environment to resolve; TBProfiler has specifically pinned v1.2.6. More info here: https://github.com/jodyphelan/TBProfiler/issues/393#issuecomment-2452076859)
 
 ## Example Usage