diff --git a/thirdparty/openblas/README.txt b/thirdparty/openblas/README.txt
index 5718dfd..db69432 100644
--- a/thirdparty/openblas/README.txt
+++ b/thirdparty/openblas/README.txt
@@ -62,3 +62,8 @@ So, follow this procedure:
 
 4. Wait until completion. It should complain that no dll could be created, but the .lib files should
    have been built correctly.
+
+----------
+Change Log
+
+Apr. 8, 2022 Removed ./xianyi-OpenBLAS-e6e87a2/lapack-3.4.1.tgz as it contains unredistributable files (see the issue #3928). The package is still available in http://www.netlib.org/lapack/ just in case.
diff --git a/thirdparty/openblas/xianyi-OpenBLAS-e6e87a2/lapack-3.4.1.tgz b/thirdparty/openblas/xianyi-OpenBLAS-e6e87a2/lapack-3.4.1.tgz
deleted file mode 100644
index fe26467..0000000
Binary files a/thirdparty/openblas/xianyi-OpenBLAS-e6e87a2/lapack-3.4.1.tgz and /dev/null differ