diff --git a/gradle.properties b/gradle.properties
index 6a0e7c4..92502e9 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,6 +1,6 @@
 ## Core
 
-VERSION = 0.7.0.0
+VERSION = 0.7.0.1
 
 # dependencies
 
diff --git a/src/main/java/cc/sukazyo/cono/morny/GradleProjectConfigures.java b/src/main/java/cc/sukazyo/cono/morny/GradleProjectConfigures.java
index 600389b..c8c9109 100644
--- a/src/main/java/cc/sukazyo/cono/morny/GradleProjectConfigures.java
+++ b/src/main/java/cc/sukazyo/cono/morny/GradleProjectConfigures.java
@@ -4,6 +4,6 @@ package cc.sukazyo.cono.morny;
  * the final field that will be updated by gradle automatically.
  */
 public class GradleProjectConfigures {
-	public static final String VERSION = "0.7.0.0";
-	public static final long COMPILE_TIMESTAMP = 1647369713069L;
+	public static final String VERSION = "0.7.0.1";
+	public static final long COMPILE_TIMESTAMP = 1647424091182L;
 }
diff --git a/src/main/java/cc/sukazyo/cono/morny/MornySystem.java b/src/main/java/cc/sukazyo/cono/morny/MornySystem.java
index 4059bd0..4dbca43 100644
--- a/src/main/java/cc/sukazyo/cono/morny/MornySystem.java
+++ b/src/main/java/cc/sukazyo/cono/morny/MornySystem.java
@@ -3,7 +3,9 @@ package cc.sukazyo.cono.morny;
 import cc.sukazyo.cono.morny.util.FileUtils;
 
 import javax.annotation.Nonnull;
+import java.io.IOException;
 import java.net.URISyntaxException;
+import java.security.NoSuchAlgorithmException;
 
 /**
  * Morny Cono 的 Coeur 的程序属性存放类
@@ -20,20 +22,22 @@ public class MornySystem {
 	 * 获取程序 jar 文件的 md5-hash 值<br>
 	 * <br>
 	 * 只支持 jar 文件方式启动的程序 ——
-	 * 如果是通过 classpath 来启动，则会返回找不到文件的错误数据<br>
-	 * - 或许需要注意，这种情况下会出现程序文件所在的路径<br>
+	 * 如果是通过 classpath 来启动，程序无法找到本体jar文件，则会返回 {@code <non-jar-runtime>} 文本
 	 * <br>
 	 * 值格式为 {@link java.lang.String}
 	 *
-	 * @return 程序jar文件的 md5-hash 值字符串，或错误信息
+	 * @return 程序jar文件的 md5-hash 值字符串，或 {@code <non-jar-runtime>} 如果出现错误
 	 */
 	@Nonnull
 	public static String getJarMd5() {
 		try {
 			return FileUtils.getMD5Three(MornyCoeur.class.getProtectionDomain().getCodeSource().getLocation().toURI().getPath());
-		} catch (URISyntaxException e) {
+		} catch (IOException | URISyntaxException e) {
 			e.printStackTrace(System.out);
-			return e.getMessage();
+			return "<non-jar-runtime>";
+		} catch (NoSuchAlgorithmException e) {
+			e.printStackTrace(System.out);
+			return "<calculation-error>";
 		}
 	}
 	
diff --git a/src/main/java/cc/sukazyo/cono/morny/bot/command/MornyCommands.java b/src/main/java/cc/sukazyo/cono/morny/bot/command/MornyCommands.java
index 9b53ac1..69173d4 100644
--- a/src/main/java/cc/sukazyo/cono/morny/bot/command/MornyCommands.java
+++ b/src/main/java/cc/sukazyo/cono/morny/bot/command/MornyCommands.java
@@ -18,6 +18,8 @@ import com.pengrad.telegrambot.request.SetMyCommands;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 
+import java.net.InetAddress;
+import java.net.UnknownHostException;
 import java.util.ArrayList;
 import java.util.LinkedHashMap;
 import java.util.List;
@@ -245,19 +247,26 @@ public class MornyCommands {
 	 * @since 0.4.1.2
 	 */
 	private static void onCommandRuntimeExec (@Nonnull Update event) {
+		String hostname;
+		try {
+			hostname = InetAddress.getLocalHost().getHostName();
+		} catch (UnknownHostException e) {
+			hostname = "<unknown>";
+		}
 		MornyCoeur.extra().exec(new SendMessage(
 				event.message().chat().id(),
 				String.format("""
 								system:
 								- <code>%s</code>
 								- <code>%s</code>
+								- <code>%s</code>
 								- <code>%d</code> cores
 								java runtime:
 								- <code>%s</code>
 								- <code>%s</code>
 								vm memory:
 								- <code>%d</code> / <code>%d</code> MB
-								morny version:
+								coeur version:
 								- <code>%s</code>
 								- <code>%s</code>
 								- <code>%s [UTC]</code>
@@ -268,6 +277,7 @@ public class MornyCommands {
 								- <code>%s [UTC]</code>
 								- [<code>%d</code>]""",
 						// system
+						escapeHtml(hostname),
 						escapeHtml(System.getProperty("os.name")),
 						escapeHtml(System.getProperty("os.version")),
 						Runtime.getRuntime().availableProcessors(),
diff --git a/src/main/java/cc/sukazyo/cono/morny/util/FileUtils.java b/src/main/java/cc/sukazyo/cono/morny/util/FileUtils.java
index c64a3db..57ff657 100644
--- a/src/main/java/cc/sukazyo/cono/morny/util/FileUtils.java
+++ b/src/main/java/cc/sukazyo/cono/morny/util/FileUtils.java
@@ -10,23 +10,18 @@ import java.security.NoSuchAlgorithmException;
 public class FileUtils {
 	
 	@Nonnull
-	public static String getMD5Three (@Nonnull String path) {
+	public static String getMD5Three (@Nonnull String path) throws IOException, NoSuchAlgorithmException {
 		final BigInteger bi;
-		try {
-			final byte[] buffer = new byte[8192];
-			int len;
-			final MessageDigest md = MessageDigest.getInstance("MD5");
-			final FileInputStream fis = new FileInputStream(path);
-			while ((len = fis.read(buffer)) != -1) {
-				md.update(buffer, 0, len);
-			}
-			fis.close();
-			final byte[] b = md.digest();
-			bi = new BigInteger(1, b);
-		} catch (NoSuchAlgorithmException | IOException e) {
-			e.printStackTrace(System.out);
-			return e.getMessage();
+		final byte[] buffer = new byte[8192];
+		int len;
+		final MessageDigest md = MessageDigest.getInstance("MD5");
+		final FileInputStream fis = new FileInputStream(path);
+		while ((len = fis.read(buffer)) != -1) {
+			md.update(buffer, 0, len);
 		}
+		fis.close();
+		final byte[] b = md.digest();
+		bi = new BigInteger(1, b);
 		return bi.toString(16);
 	}