diff --git a/server/app/core/sshManager.js b/server/app/core/sshManager.js
index 79a95695..e2049c22 100644
--- a/server/app/core/sshManager.js
+++ b/server/app/core/sshManager.js
@@ -9,19 +9,6 @@ const { emitAll } = require("../handlers/commUtils.js");
 
 const db = new Map();
 
-/**
- * check whether verbose ssh logging is enabled via environment variable
- * @returns {boolean} - true when enabled
- */
-function isVerboseSshEnabled() {
-  const value = process.env.WHEEL_VERBOSE_SSH;
-  if (typeof value !== "string") {
-    return false;
-  }
-  const normalized = value.trim().toLowerCase();
-  return normalized !== "" && normalized !== "0" && normalized !== "false";
-}
-
 /**
  * check if db contains ssh object for the project
  * @param {string} projectRootDir - project's root path
@@ -206,7 +193,7 @@ async function createSsh(projectRootDir, remoteHostName, hostinfo, clientID, isS
   if (hostinfo.readyTimeout) {
     hostinfo.ConnectTimeout = Math.floor(hostinfo.readyTimeout / 1000);
   }
-  if (isVerboseSshEnabled()) {
+  if (process.env.WHEEL_VERBOSE_SSH) {
     hostinfo.sshOpt = ["-vvv"];
   }
   if (hostinfo.username) {
diff --git a/server/app/db/version.json b/server/app/db/version.json
index a9ad41af..0144ea53 100644
--- a/server/app/db/version.json
+++ b/server/app/db/version.json
@@ -1 +1 @@
-{"version": "2026-0605-211714" }
\ No newline at end of file
+{"version": "2026-0316-150937" }
\ No newline at end of file
diff --git a/server/test/app/core/sshManager.js b/server/test/app/core/sshManager.js
index f5875abc..5cc6d3ec 100644
--- a/server/test/app/core/sshManager.js
+++ b/server/test/app/core/sshManager.js
@@ -325,9 +325,7 @@ describe("#getSshPW", ()=>{
     hasEntryMock.returns(true);
 
     //パスワードが関数の場合も想定してテスト
-    const pwFunc = ()=>{
-      return "secretFromFunction";
-    };
+    const pwFunc = ()=>"secretFromFunction";
     dbMock.set("/path/to/project", new Map([
       ["hostID", { pw: pwFunc }]
     ]));
@@ -682,9 +680,7 @@ describe("#createSsh", ()=>{
     //ここでは askPasswordMock が呼ばれていない可能性もあります。
     //(シナリオによっては、askPasswordMock を実際に呼ばせるには canConnect 内部実装が必要)
     //ここでは、"あとで必要になったとき呼ばれる" 想定なので、call回数は 0 のままでも問題なし
-    expect(askPasswordMock.callCount).to.satisfy((count)=>{
-      return count === 0 || count === 1;
-    });
+    expect(askPasswordMock.callCount).to.satisfy((count)=>count === 0 || count === 1);
 
     expect(result).to.be.ok;
   });
@@ -752,18 +748,6 @@ describe("#createSsh", ()=>{
     expect(addSshMock.calledOnce).to.be.true;
   });
 
-  it("should not set sshOpt when WHEEL_VERBOSE_SSH is false-like", async ()=>{
-    process.env.WHEEL_VERBOSE_SSH = "false";
-    hasEntryMock.returns(false);
-    canConnectMock.resolves(true);
-
-    const hostinfo = { id: "verboseFalseTest" };
-    await createSsh("/vProj", "vHost", hostinfo, "cl-v", false);
-
-    expect(hostinfo).to.not.have.property("sshOpt");
-    expect(addSshMock.calledOnce).to.be.true;
-  });
-
   it("should copy username to user and remove username if exist", async ()=>{
     hasEntryMock.returns(false);
     canConnectMock.resolves(true);