diff --git a/install-scripts/install-safe-chain.ps1 b/install-scripts/install-safe-chain.ps1
index 13d2f1a..e185d2a 100644
--- a/install-scripts/install-safe-chain.ps1
+++ b/install-scripts/install-safe-chain.ps1
@@ -36,10 +36,37 @@ function Get-Architecture {
     }
 }
 
+# Check and uninstall npm global package if present
+function Remove-NpmInstallation {
+    # Check if npm is available
+    if (-not (Get-Command npm -ErrorAction SilentlyContinue)) {
+        return
+    }
+
+    # Check if safe-chain is installed as an npm global package
+    npm list -g @aikidosec/safe-chain 2>&1 | Out-Null
+    if ($LASTEXITCODE -eq 0) {
+        Write-Info "Detected npm global installation of @aikidosec/safe-chain"
+        Write-Info "Uninstalling npm version before installing binary version..."
+
+        npm uninstall -g @aikidosec/safe-chain 2>&1 | Out-Null
+        if ($LASTEXITCODE -eq 0) {
+            Write-Info "Successfully uninstalled npm version"
+        }
+        else {
+            Write-Warn "Failed to uninstall npm version automatically"
+            Write-Warn "Please run: npm uninstall -g @aikidosec/safe-chain"
+        }
+    }
+}
+
 # Main installation
 function Install-SafeChain {
     Write-Info "Installing safe-chain $Version..."
 
+    # Check for existing npm installation
+    Remove-NpmInstallation
+
     # Detect platform
     $arch = Get-Architecture
     $binaryName = "safe-chain-win-$arch.exe"
diff --git a/install-scripts/install-safe-chain.sh b/install-scripts/install-safe-chain.sh
index cb899b6..6f8480e 100755
--- a/install-scripts/install-safe-chain.sh
+++ b/install-scripts/install-safe-chain.sh
@@ -68,10 +68,33 @@ download() {
     fi
 }
 
+# Check and uninstall npm global package if present
+check_npm_installation() {
+    if ! command_exists npm; then
+        return
+    fi
+
+    # Check if safe-chain is installed as an npm global package
+    if npm list -g @aikidosec/safe-chain >/dev/null 2>&1; then
+        info "Detected npm global installation of @aikidosec/safe-chain"
+        info "Uninstalling npm version before installing binary version..."
+
+        if npm uninstall -g @aikidosec/safe-chain >/dev/null 2>&1; then
+            info "Successfully uninstalled npm version"
+        else
+            warn "Failed to uninstall npm version automatically"
+            warn "Please run: npm uninstall -g @aikidosec/safe-chain"
+        fi
+    fi
+}
+
 # Main installation
 main() {
     info "Installing safe-chain ${VERSION}..."
 
+    # Check for existing npm installation
+    check_npm_installation
+
     # Detect platform
     OS=$(detect_os)
     ARCH=$(detect_arch)