diff --git a/.fvmrc b/.fvmrc
deleted file mode 100644
index 45c21240a..000000000
--- a/.fvmrc
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "flutter": "3.38.6"
-}
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index cb615fd75..5d3b4192a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -146,4 +146,6 @@ pili_release.json
 
 dist
 
-test.dart
\ No newline at end of file
+test.dart
+
+.fvmrc
\ No newline at end of file
diff --git a/lib/scripts/build.ps1 b/lib/scripts/build.ps1
index c37c91012..036b317bc 100644
--- a/lib/scripts/build.ps1
+++ b/lib/scripts/build.ps1
@@ -5,27 +5,36 @@ param(
 try {
     $versionName = $null
 
+    $flutterVersion = $null
+
     $versionCode = [int](git rev-list --count HEAD).Trim()
 
     $commitHash = (git rev-parse HEAD).Trim()
 
     $updatedContent = foreach ($line in (Get-Content -Path 'pubspec.yaml' -Encoding UTF8)) {
-        if ($line -match '^\s*version:\s*([\d\.]+)') {
-            $versionName = $matches[1]
-            if ($Arg -eq 'android') {
-                $versionName += '-' + $commitHash.Substring(0, 9)
+        if ($line -match '^\s*(version|flutter):\s*([\d\.]+)') {
+            if ('version' -eq $matches[1]) {
+                $versionName = $matches[2]
+                if ('android' -eq $Arg) {
+                    $versionName += '-' + $commitHash.Substring(0, 9)
+                }
+                "version: $versionName+$versionCode"
+            } else {
+                $flutterVersion = $matches[2]
+                $line
             }
-            "version: $versionName+$versionCode"
         }
         else {
             $line
         }
     }
 
-    if ($null -eq $versionName) {
+    if ($null -eq $versionName -or $null -eq $flutterVersion) {
         throw 'version not found'
     }
 
+    Set-Content -Path '.fvmrc' -Value "{`"flutter`":`"$flutterVersion`"}"
+
     $updatedContent | Set-Content -Path 'pubspec.yaml' -Encoding UTF8
 
     $buildTime = [int]([DateTimeOffset]::Now.ToUnixTimeSeconds())