diff --git a/go.mod b/go.mod
index ff6f3f5..d13c510 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,7 @@ go 1.22.4
 require (
 	github.com/imroc/req/v3 v3.43.7
 	github.com/oneclickvirt/CommonMediaTests v0.0.4-20240704024502
-	github.com/oneclickvirt/UnlockTests v0.0.16-20240822120857
+	github.com/oneclickvirt/UnlockTests v0.0.16-20240823051211
 	github.com/oneclickvirt/backtrace v0.0.4-20240702140722
 	github.com/oneclickvirt/basics v0.0.7-20240821160408
 	github.com/oneclickvirt/cputest v0.0.8-20240702070215
diff --git a/go.sum b/go.sum
index 55b703f..0cbc9b4 100644
--- a/go.sum
+++ b/go.sum
@@ -104,8 +104,8 @@ github.com/nxtrace/NTrace-core v1.3.2 h1:8aU/IQFmPnwbaWGVBIJHwwVIWk+roo+9+lG+U0O
 github.com/nxtrace/NTrace-core v1.3.2/go.mod h1:qCVsgSs982jw02BVjTtN8mjSg5OIXW9TaUdISQrMnTw=
 github.com/oneclickvirt/CommonMediaTests v0.0.4-20240704024502 h1:hRIYJ2uEp2N3AH5bP5X6bwfdwWfZQO/2WoqpUJ8+WsY=
 github.com/oneclickvirt/CommonMediaTests v0.0.4-20240704024502/go.mod h1:DAmFPRjFV5p9fEzUUSml5jJGn2f1NZJQCzTxITHDjc4=
-github.com/oneclickvirt/UnlockTests v0.0.16-20240822120857 h1:LCOZk4RRmipObNreCOwFzgT97GtXeUqdvdLk5Ja/zTo=
-github.com/oneclickvirt/UnlockTests v0.0.16-20240822120857/go.mod h1:UELwZDDiddSxe38boYOPl1FlrL0ptEZYSQwdE3MYvUM=
+github.com/oneclickvirt/UnlockTests v0.0.16-20240823051211 h1:oDYlAXbUSt6JYTC+wcFDVWTacGuyBtWNfJhpKkrqNkU=
+github.com/oneclickvirt/UnlockTests v0.0.16-20240823051211/go.mod h1:UELwZDDiddSxe38boYOPl1FlrL0ptEZYSQwdE3MYvUM=
 github.com/oneclickvirt/backtrace v0.0.4-20240702140722 h1:UJ/VWf+ZbhGarc9HcHMIyenpmX+b2LxkXu0hlLk3Gxs=
 github.com/oneclickvirt/backtrace v0.0.4-20240702140722/go.mod h1:zvsC7xY/WZqs5KL2JB967OVnuqjNbxu9bW6wXRLo5h8=
 github.com/oneclickvirt/basics v0.0.7-20240821160408 h1:IOqa7bBAkjhfru6arDsOTKB7qZ36ojfOP73kE+cDaqc=
diff --git a/goecs.go b/goecs.go
index 1e9b792..e6c55d8 100644
--- a/goecs.go
+++ b/goecs.go
@@ -38,7 +38,7 @@ import (
 )
 
 var (
-	ecsVersion                                                        = "v0.0.73"
+	ecsVersion                                                        = "v0.0.74"
 	menuMode                                                          bool
 	onlyChinaTest                                                     bool
 	input, choice                                                     string
diff --git a/goecs.sh b/goecs.sh
index bf1f224..6afdb58 100644
--- a/goecs.sh
+++ b/goecs.sh
@@ -358,7 +358,10 @@ env_check() {
     fi
     if ! command -v dd >/dev/null 2>&1; then
         _green "Installing dd"
-        ${PACKAGE_INSTALL[int]} dd
+        ${PACKAGE_INSTALL[int]} coreutils
+        if [ $? -ne 0 ]; then
+          ${PACKAGE_INSTALL[int]} man
+        fi
     fi
     if ! command -v fio >/dev/null 2>&1; then
         _green "Installing fio"