diff --git a/scripts/randomx_boost.sh b/scripts/randomx_boost.sh
index 9f2a7bcbb..ecbcdb4e2 100755
--- a/scripts/randomx_boost.sh
+++ b/scripts/randomx_boost.sh
@@ -13,7 +13,7 @@ if cat /proc/cpuinfo | grep "AMD Ryzen" > /dev/null;
 elif cat /proc/cpuinfo | grep "Intel" > /dev/null;
 	then
 		echo "Detected Intel"
-		wrmsr -a 0x1a4 6
+		wrmsr -a 0x1a4 0xf
 		echo "MSR register values for Intel applied"
 else
 	echo "No supported CPU detected"
diff --git a/src/version.h b/src/version.h
index eb8e9c506..c1831cd00 100644
--- a/src/version.h
+++ b/src/version.h
@@ -28,7 +28,7 @@
 #define APP_ID        "xmrig"
 #define APP_NAME      "XMRig"
 #define APP_DESC      "XMRig miner"
-#define APP_VERSION   "5.5.1-dev"
+#define APP_VERSION   "5.5.1"
 #define APP_DOMAIN    "xmrig.com"
 #define APP_SITE      "www.xmrig.com"
 #define APP_COPYRIGHT "Copyright (C) 2016-2020 xmrig.com"