diff --git a/ChangeLog.md b/ChangeLog.md
index 9819d05fbc1..5295310c72a 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,9 @@
+# wolfSSL Release 5.1.1 (Jan 3rd, 2021)
+Release 5.1.1 of wolfSSL embedded TLS has a high vulnerability fix:
+
+### Vulnerabilities
+* \[High\]  In connections using AES-CBC or DES3 with TLS/DTLS 1.2 or 1.1 the IV being used is not random. Users using wolfSSL version 5.0.0 or 5.1.0 doing TLS/DTLS 1.2 or 1.1 connections, without AEAD only, should update the version of wolfSSL used.
+
 # wolfSSL Release 5.1.0 (Dec 27, 2021)
 Release 5.1.0 of wolfSSL embedded TLS has bug fixes and new features including:
 
diff --git a/README b/README
index af844349c56..1126e32669d 100644
--- a/README
+++ b/README
@@ -77,6 +77,12 @@ https://www.wolfssl.com/docs/security-vulnerabilities/
 See INSTALL file for build instructions.
 More info can be found on-line at https://wolfssl.com/wolfSSL/Docs.html
 
+# wolfSSL Release 5.1.1 (Jan 3rd, 2021)
+Release 5.1.1 of wolfSSL embedded TLS has a high vulnerability fix:
+
+### Vulnerabilities
+* \[High\]  In connections using AES-CBC or DES3 with TLS/DTLS 1.2 or 1.1 the IV being used is not random. Users using wolfSSL version 5.0.0 or 5.1.0 doing TLS/DTLS 1.2 or 1.1 connections, without AEAD only, should update the version of wolfSSL used.
+
 # wolfSSL Release 5.1.0 (Dec 27, 2021)
 Release 5.1.0 of wolfSSL embedded TLS has bug fixes and new features including:
 
diff --git a/README.md b/README.md
index f5d14b55631..69e945825e4 100644
--- a/README.md
+++ b/README.md
@@ -78,6 +78,12 @@ macro `NO_OLD_SHA_NAMES`. These names get mapped to the OpenSSL API for a
 single call hash function. Instead the name `WC_SHA`, `WC_SHA256`, `WC_SHA384` and
 `WC_SHA512` should be used for the enum name.
 
+# wolfSSL Release 5.1.1 (Jan 3rd, 2021)
+Release 5.1.1 of wolfSSL embedded TLS has a high vulnerability fix:
+
+### Vulnerabilities
+* \[High\]  In connections using AES-CBC or DES3 with TLS/DTLS 1.2 or 1.1 the IV being used is not random. Users using wolfSSL version 5.0.0 or 5.1.0 doing TLS/DTLS 1.2 or 1.1 connections, without AEAD only, should update the version of wolfSSL used.
+
 # wolfSSL Release 5.1.0 (Dec 27, 2021)
 Release 5.1.0 of wolfSSL embedded TLS has bug fixes and new features including:
 
diff --git a/wolfssl/wolfcrypt/types.h b/wolfssl/wolfcrypt/types.h
index 0fbc45a74b3..5d17dfec73f 100644
--- a/wolfssl/wolfcrypt/types.h
+++ b/wolfssl/wolfcrypt/types.h
@@ -316,7 +316,7 @@ decouple library dependencies with standard string, memory and so on.
             #elif ((__GNUC__ > 7) || ((__GNUC__ == 7) && (__GNUC_MINOR__ >= 1)))
                 #define FALL_THROUGH ; __attribute__ ((fallthrough))
             #elif defined(__clang__) && defined(__clang_major__) && \
-                    (__clang_major__ >= 11)
+                    (__clang_major__ >= 12)
                 #define FALL_THROUGH ; __attribute__ ((fallthrough))
             #endif
         #endif