diff --git a/vigil/tools.toml b/vigil/tools.toml
index ecf223f..2bbd618 100644
--- a/vigil/tools.toml
+++ b/vigil/tools.toml
@@ -106,19 +106,19 @@ tools_for_extensions = [
 [unxz]
   dependencies = ["xz-utils"]
   url = "xz-utils"
-  command = "unxz -l"
+  command = "unxz --list"
   success_status = "normal"
 
 [dpkg_contents]
   dependencies = ["dpkg"]
   url = "dpkg"
-  command = "dpkg -c"
+  command = "dpkg --contents"
   success_status = "normal"
 
 [dpkg_info]
   dependencies = ["dpkg"]
   url = "dpkg"
-  command = "dpkg -I"
+  command = "dpkg --info"
   success_status = "normal"
 
 [rpm]