diff --git a/.Rbuildignore b/.Rbuildignore
index 9732fcf..fe409e1 100644
--- a/.Rbuildignore
+++ b/.Rbuildignore
@@ -22,3 +22,4 @@ run_tests$
 ^install_ogrdbstats.R$
 ^make_sample_data.R$
 ^ogrdbstats.R$
+^revdep$
diff --git a/DESCRIPTION b/DESCRIPTION
index 49cee78..015db2d 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: ogrdbstats
 Type: Package
 Title: Analysis of Adaptive Immune Receptor Repertoire Germ Line Statistics
-Version: 0.5.2
+Version: 0.5.1
 Authors@R: person(
   "William", "Lees",
   email = "william@lees.org.uk",
diff --git a/cran-comments.md b/cran-comments.md
index a266fff..9515c1e 100644
--- a/cran-comments.md
+++ b/cran-comments.md
@@ -1,28 +1,8 @@
-R CMD gives no errors or warnings, and one note stating that this is a
-new submission, which I cannot eliminate:
+## R CMD check results
 
-* checking CRAN incoming feasibility ... [8s] NOTE
-Maintainer: 'William Lees <william@lees.org.uk>'
+0 errors | 0 warnings | 0 notes
 
-New submission
 
------------------
+This is a minor update to resolve a problem notified by CRAN Package Check : https://cran.r-project.org/web/checks/check_results_ogrdbstats.html
 
-I confirm that I have read and agree to the CRAN Repository Policy.
-
-R CMD has beeen run on Windows, macOS and Linux using GitHub actions, and
-also using win_devel.
-
------------------
-
-Thank you for earlier feedback. Since then I have:
-- Proof-read the description text and made some changes
-- added a reference describing the methods to the description text
-- Replaced the use of T and F with TRUE and FALSE throughout the package
-- Added examples to all exported functions
-- Replaced print()/cat() with use message()/warning()  
-- Removed all code that changed the user's current directory
-- reduced the execution time of example code
-- removed words that offended the spell checker
-
-Best wishes
+I reproduced and fixed the problem. Have tested on windows, ubuntu and macos - latest, ubuntu-latest devel.
\ No newline at end of file