--- ../Crypto/Random/DRBG.hs	2026-09-11 18:01:17.799969756 +0300
+++ ../Crypto/Random/DRBG.hs	2026-09-11 18:01:42.425895436 +0300
@@ -95,7 +95,6 @@
 import qualified Data.ByteString as B
 import Data.Tagged
 import Control.Parallel
-import Control.Monad.Error () -- Either instance
 import Data.Word
 
 instance H.SeedLength SHA512 where