diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 8893011..cf4ae2a 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -135,7 +135,9 @@ jobs:
 
         if ($rebuild) {
             Write-Host "Environment changed → rebuilding"
-            micromamba env remove -n $envName -y 2>$null || $true
+            if (micromamba env list | Select-String $envName) {
+                micromamba env remove -n $envName -y 2>$null
+            }
             micromamba create -n $envName -f $envFile -y
             $newHash | Out-File $hashFile
         } else {