diff --git a/README.markdown b/README.markdown
index 145cc60..5ab6c66 100644
--- a/README.markdown
+++ b/README.markdown
@@ -77,6 +77,11 @@ Indeed you could. I prefer a minimal focused tool whose operation is fixed, its
 
 ## Version History
 
+### v1.3.1: 2020-07-04 [download](https://github.com/rentzsch/stressdrive/releases/download/1.3.1/stressdrive-mac-1.3.1.zip)
+
+- [DEV] [OpenSSL v1.1.0 now requires dynamic allocation]() of cipher contexts via `EVP_CIPHER_CTX_new()`. ([rentzsch](https://github.com/rentzsch/stressdrive/commit/b3462490ef6817d89b55f6f6eb209d2319e8d842))
+- [DEV] Upgrade to Xcode v11.2.1. ([rentzsch](https://github.com/rentzsch/stressdrive/commit/1d7e6a5918cc903a99337fdc402d3eb343818969))
+
 ### v1.3: 2018-02-19
 
 - [NEW] Display speed alongside progress. ([Ivan Kuchin](https://github.com/rentzsch/stressdrive/pull/9))
diff --git a/stressdrive.c b/stressdrive.c
index fd10eb1..f195bfb 100644
--- a/stressdrive.c
+++ b/stressdrive.c
@@ -1,4 +1,4 @@
-// stressdrive.c 1.3
+// stressdrive.c 1.3.1
 //   Copyright (c) 2011-2018 Jonathan 'Wolf' Rentzsch: http://rentzsch.com
 //   Some rights reserved: http://opensource.org/licenses/mit
 //   https://github.com/rentzsch/stressdrive
@@ -123,7 +123,7 @@ void SHA1_Finish(unsigned char *digest, SHA_CTX *ctx, const char *name) {
 
 int main(int argc, const char *argv[]) {
     if (argc != 2) {
-        fprintf(stderr, "stressdrive v1.3\n");
+        fprintf(stderr, "stressdrive v1.3.1\n");
 #ifdef __APPLE__
         fprintf(stderr, "Usage: sudo %s /dev/rdiskN\n", argv[0]);
 #else