diff --git a/.gitignore b/.gitignore
index 0a5ab1b..421036b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,4 @@ BufferedMatrix_1.12.0.tar.gz
 /BufferedMatrix_1.50.0.tar.gz
 /BufferedMatrix_1.52.0.tar.gz
 /BufferedMatrix_1.54.0.tar.gz
+/BufferedMatrix_1.56.0.tar.gz
diff --git a/R-BufferedMatrix.spec b/R-BufferedMatrix.spec
index 5d421dd..ce809bc 100644
--- a/R-BufferedMatrix.spec
+++ b/R-BufferedMatrix.spec
@@ -2,7 +2,7 @@
 %global Rvers      3.4.0
 
 Name:              R-%{packname}
-Version:           1.54.0
+Version:           1.56.0
 Release:           1%{dist}
 Summary:           A matrix data storage object method from bioconductor
 Summary(fr):       Stockage des données d'un matrice dans un fichier temporaire
@@ -74,6 +74,10 @@ rm -rf %{buildroot}%{_libdir}/R/library/R.css
 
 
 %changelog
+* Mon Jun  7 2021 Tom Callaway <spot@fedoraproject.org> - 1.56.0-1
+- update to 1.56.0
+- rebuild for R 4.1.0
+
 * Wed Feb  3 2021 Tom Callaway <spot@fedoraproject.org> - 1.54.0-1
 - update to 1.54.0
 
diff --git a/sources b/sources
index bbd6956..511259b 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (BufferedMatrix_1.54.0.tar.gz) = 9927de207886681d8b419207a5676b17926558d18f917397865613e43b76b09e6c194b6dce520ecac73510ab13fe2479dba62a173cb5a58bb48fa1bbc0afd3b3
+SHA512 (BufferedMatrix_1.56.0.tar.gz) = 3403688e55bdd6076445491f7d6f6297a40ddf21092ec6d68fb2e962faa918fd0dc5430495bebbbc1418c482f4d83f11b6858cad46a00469193b25d4885d5a12