diff --git a/wolfcrypt/src/rsa.c b/wolfcrypt/src/rsa.c
index 4fb4393f0b..3ebcd0d43c 100644
--- a/wolfcrypt/src/rsa.c
+++ b/wolfcrypt/src/rsa.c
@@ -2212,6 +2212,8 @@ static int wc_RsaFunctionSync(const byte* in, word32 inLen, byte* out,
 #endif
             }
 
+            if (d != NULL)
+                ForceZero(d, dSz);
             XFREE(d, key->heap, DYNAMIC_TYPE_PRIVATE_KEY);
         }
     #endif
diff --git a/wolfssl/version.h b/wolfssl/version.h
index a93c997f46..903bc3f4fb 100644
--- a/wolfssl/version.h
+++ b/wolfssl/version.h
@@ -28,8 +28,8 @@
 extern "C" {
 #endif
 
-#define LIBWOLFSSL_VERSION_STRING "5.8.4"
-#define LIBWOLFSSL_VERSION_HEX 0x05008004
+#define LIBWOLFSSL_VERSION_STRING "5.9.0"
+#define LIBWOLFSSL_VERSION_HEX 0x05009000
 
 #ifdef __cplusplus
 }