diff --git a/hledger-lib/Hledger/Read/CsvReader.hs b/hledger-lib/Hledger/Read/CsvReader.hs
index 71fe739a3..50ccfd8ed 100644
--- a/hledger-lib/Hledger/Read/CsvReader.hs
+++ b/hledger-lib/Hledger/Read/CsvReader.hs
@@ -74,8 +74,6 @@ import Hledger.Data
 import Hledger.Utils
 import Hledger.Read.Common (Reader(..),InputOpts(..),amountp, statusp, genericSourcePos)
 
-import Data.String.Conversions
-
 type CSV = [Record]
 
 type Record = [Field]
@@ -198,7 +196,7 @@ parseCassava path content =
         Left  msg -> Left $ CSVError msg
         Right a   -> Right a
     where parseResult = fmap parseResultToCsv $ CassavaMP.decodeWith decodeOptions Cassava.NoHeader path lazyContent
-          lazyContent = cs $ T.encodeUtf8 content
+          lazyContent = BL.fromStrict $ T.encodeUtf8 content
 
 decodeOptions :: Cassava.DecodeOptions
 decodeOptions = Cassava.defaultDecodeOptions {
diff --git a/hledger-lib/hledger-lib.cabal b/hledger-lib/hledger-lib.cabal
index 264c4b214..3fabd9c50 100644
--- a/hledger-lib/hledger-lib.cabal
+++ b/hledger-lib/hledger-lib.cabal
@@ -131,7 +131,6 @@ library
     , regex-tdfa
     , safe >=0.2
     , split >=0.1
-    , string-conversions
     , tabular >=0.2
     , text >=1.2
     , time >=1.5
@@ -231,7 +230,6 @@ test-suite doctests
     , regex-tdfa
     , safe >=0.2
     , split >=0.1
-    , string-conversions
     , tabular >=0.2
     , text >=1.2
     , time >=1.5
@@ -331,7 +329,6 @@ test-suite easytests
     , regex-tdfa
     , safe >=0.2
     , split >=0.1
-    , string-conversions
     , tabular >=0.2
     , text >=1.2
     , time >=1.5
@@ -431,7 +428,6 @@ test-suite hunittests
     , regex-tdfa
     , safe >=0.2
     , split >=0.1
-    , string-conversions
     , tabular >=0.2
     , test-framework
     , test-framework-hunit
diff --git a/hledger-lib/package.yaml b/hledger-lib/package.yaml
index 7128110d7..11b2c0dbb 100644
--- a/hledger-lib/package.yaml
+++ b/hledger-lib/package.yaml
@@ -74,7 +74,6 @@ dependencies:
 - uglymemo
 - utf8-string >=0.3.5
 - extra
-- string-conversions
 - Glob >= 0.9
 # for ledger-parse:
 #- parsers >=0.5