diff --git a/packages.dhall b/packages.dhall
index 20b7382..dff2428 100644
--- a/packages.dhall
+++ b/packages.dhall
@@ -3,159 +3,155 @@ let upstream =
         sha256:ca727657c01cc31d0e79c2113b59126b9826f4b56d20a8193be3c725599fb754
 
 let eth-core-deps =
-      https://raw.githubusercontent.com/f-o-a-m/purescript-eth-core/master/packages.dhall
-        sha256:af2751772a729d58edf7056805007934e3687b3079f8a02ac514e705aeab8c42
+      https://raw.githubusercontent.com/f-o-a-m/purescript-eth-core/v10.1.0/packages.dhall
+        sha256:ca727657c01cc31d0e79c2113b59126b9826f4b56d20a8193be3c725599fb754
 
 let web3-deps =
-      https://raw.githubusercontent.com/f-o-a-m/purescript-web3/master/packages.dhall
-        sha256:c1bebe7e4899bd64304a84fea26f9ea635e20897f206ce6fa86bd446715c5ffc
+      https://raw.githubusercontent.com/f-o-a-m/purescript-web3/v7.2.0/packages.dhall
+        sha256:2687f2bfcd60b5260d340407c9851e963b440ad520bbc93595f0452f859c9846
 
 let additions =
-      { bytestrings = eth-core-deps.bytestrings
-      , coroutine-transducers = web3-deps.coroutine-transducers
+      { coroutine-transducers = web3-deps.coroutine-transducers
       , dodo-printer =
-          { dependencies =
-            [ "aff"
-            , "ansi"
-            , "arrays"
-            , "avar"
-            , "console"
-            , "control"
-            , "effect"
-            , "either"
-            , "exceptions"
-            , "foldable-traversable"
-            , "integers"
-            , "lists"
-            , "maybe"
-            , "minibench"
-            , "newtype"
-            , "node-buffer"
-            , "node-child-process"
-            , "node-path"
-            , "node-process"
-            , "node-streams"
-            , "parallel"
-            , "partial"
-            , "posix-types"
-            , "prelude"
-            , "safe-coerce"
-            , "strings"
-            , "tuples"
-            ]
-          , repo = "https://github.com/natefaubion/purescript-dodo-printer.git"
-          , version = "v2.2.1"
-          }
+        { dependencies =
+          [ "aff"
+          , "ansi"
+          , "arrays"
+          , "avar"
+          , "console"
+          , "control"
+          , "effect"
+          , "either"
+          , "exceptions"
+          , "foldable-traversable"
+          , "integers"
+          , "lists"
+          , "maybe"
+          , "minibench"
+          , "newtype"
+          , "node-buffer"
+          , "node-child-process"
+          , "node-path"
+          , "node-process"
+          , "node-streams"
+          , "parallel"
+          , "partial"
+          , "posix-types"
+          , "prelude"
+          , "safe-coerce"
+          , "strings"
+          , "tuples"
+          ]
+        , repo = "https://github.com/natefaubion/purescript-dodo-printer.git"
+        , version = "v2.2.1"
+        }
       , eth-core = web3-deps.eth-core
-      , quotient = eth-core-deps.quotient
       , tidy =
-          { dependencies =
-            [ "arrays"
-            , "dodo-printer"
-            , "foldable-traversable"
-            , "lists"
-            , "maybe"
-            , "ordered-collections"
-            , "partial"
-            , "prelude"
-            , "language-cst-parser"
-            , "strings"
-            , "tuples"
-            ]
-          , repo = "https://github.com/natefaubion/purescript-tidy.git"
-          , version = "v0.10.0"
-          }
+        { dependencies =
+          [ "arrays"
+          , "dodo-printer"
+          , "foldable-traversable"
+          , "lists"
+          , "maybe"
+          , "ordered-collections"
+          , "partial"
+          , "prelude"
+          , "language-cst-parser"
+          , "strings"
+          , "tuples"
+          ]
+        , repo = "https://github.com/natefaubion/purescript-tidy.git"
+        , version = "v0.10.0"
+        }
       , tidy-codegen =
-          { dependencies =
-            [ "aff"
-            , "ansi"
-            , "arrays"
-            , "avar"
-            , "bifunctors"
-            , "console"
-            , "control"
-            , "dodo-printer"
-            , "effect"
-            , "either"
-            , "enums"
-            , "exceptions"
-            , "filterable"
-            , "foldable-traversable"
-            , "free"
-            , "identity"
-            , "integers"
-            , "language-cst-parser"
-            , "lazy"
-            , "lists"
-            , "maybe"
-            , "newtype"
-            , "node-buffer"
-            , "node-child-process"
-            , "node-path"
-            , "node-process"
-            , "node-streams"
-            , "ordered-collections"
-            , "parallel"
-            , "partial"
-            , "posix-types"
-            , "prelude"
-            , "record"
-            , "safe-coerce"
-            , "st"
-            , "strings"
-            , "tidy"
-            , "transformers"
-            , "tuples"
-            , "type-equality"
-            , "unicode"
-            ]
-          , repo =
-              "https://github.com/natefaubion/purescript-tidy-codegen.git"
-          , version = "v4.0.0"
-          }
-      , web3 = 
-        {  dependencies =
-             [ "aff"
-             , "argonaut"
-             , "arrays"
-             , "bifunctors"
-             , "bytestrings"
-             , "control"
-             , "coroutine-transducers"
-             , "coroutines"
-             , "effect"
-             , "either"
-             , "eth-core"
-             , "exceptions"
-             , "foldable-traversable"
-             , "foreign"
-             , "foreign-object"
-             , "fork"
-             , "gen"
-             , "heterogeneous"
-             , "maybe"
-             , "newtype"
-             , "parallel"
-             , "parsing"
-             , "partial"
-             , "prelude"
-             , "profunctor-lenses"
-             , "record"
-             , "ring-modules"
-             , "simple-json"
-             , "strings"
-             , "tagged"
-             , "tailrec"
-             , "transformers"
-             , "tuples"
-             , "typelevel-prelude"
-             , "unfoldable"
-             , "unsafe-coerce"
-             , "variant"
-             , "identity"
-             ],
-           repo = "https://github.com/f-o-a-m/purescript-web3.git",
-           version = "v7.2.0"
+        { dependencies =
+          [ "aff"
+          , "ansi"
+          , "arrays"
+          , "avar"
+          , "bifunctors"
+          , "console"
+          , "control"
+          , "dodo-printer"
+          , "effect"
+          , "either"
+          , "enums"
+          , "exceptions"
+          , "filterable"
+          , "foldable-traversable"
+          , "free"
+          , "identity"
+          , "integers"
+          , "language-cst-parser"
+          , "lazy"
+          , "lists"
+          , "maybe"
+          , "newtype"
+          , "node-buffer"
+          , "node-child-process"
+          , "node-path"
+          , "node-process"
+          , "node-streams"
+          , "ordered-collections"
+          , "parallel"
+          , "partial"
+          , "posix-types"
+          , "prelude"
+          , "record"
+          , "safe-coerce"
+          , "st"
+          , "strings"
+          , "tidy"
+          , "transformers"
+          , "tuples"
+          , "type-equality"
+          , "unicode"
+          ]
+        , repo = "https://github.com/natefaubion/purescript-tidy-codegen.git"
+        , version = "v4.0.0"
+        }
+      , web3 =
+        { dependencies =
+          [ "aff"
+          , "argonaut"
+          , "arrays"
+          , "bifunctors"
+          , "control"
+          , "coroutine-transducers"
+          , "coroutines"
+          , "effect"
+          , "either"
+          , "eth-core"
+          , "exceptions"
+          , "foldable-traversable"
+          , "foreign"
+          , "foreign-object"
+          , "fork"
+          , "gen"
+          , "heterogeneous"
+          , "maybe"
+          , "newtype"
+          , "parallel"
+          , "parsing"
+          , "partial"
+          , "prelude"
+          , "profunctor-lenses"
+          , "record"
+          , "ring-modules"
+          , "simple-json"
+          , "strings"
+          , "tagged"
+          , "tailrec"
+          , "transformers"
+          , "tuples"
+          , "typelevel-prelude"
+          , "unfoldable"
+          , "unsafe-coerce"
+          , "variant"
+          , "identity"
+          ]
+        , repo = "https://github.com/f-o-a-m/purescript-web3.git"
+        , version = "v7.2.0"
         }
       }
 
diff --git a/src/Data/Generator.purs b/src/Data/Generator.purs
index d7b8891..f14b9fa 100644
--- a/src/Data/Generator.purs
+++ b/src/Data/Generator.purs
@@ -10,7 +10,7 @@ import Data.Newtype (un)
 import Data.String (drop, joinWith, take, toLower, toUpper)
 import Data.Traversable (all, for, for_)
 import Data.Tuple (Tuple(..))
-import Network.Ethereum.Core.HexString (fromByteString)
+import Network.Ethereum.Core.HexString (fromBuffer)
 import Network.Ethereum.Core.Keccak256 (keccak256)
 import Network.Ethereum.Web3.Types (HexString, unHex)
 import Partial.Unsafe (unsafeCrashWith, unsafePartial)
@@ -59,7 +59,7 @@ basicToPSType opts a = case a of
     bytesN <- TidyM.importFrom "Network.Ethereum.Web3.Solidity" (TidyM.importType "BytesN")
     pure $ Gen.typeApp (Gen.typeCtor bytesN) [ Gen.typeInt n ]
   SolidityBytesD -> unsafePartial $ maybeWrap opts true $
-    Gen.typeCtor <$> TidyM.importFrom "Network.Ethereum.Web3.Solidity" (TidyM.importType "ByteString")
+    Gen.typeCtor <$> TidyM.importFrom "Network.Ethereum.Web3.Solidity" (TidyM.importType "ImmutableBuffer")
   tup@(SolidityTuple factors) -> unsafePartial $ maybeWrap opts (noRecordsAtOrBelow $ BasicType tup)
     case factors of
       [] -> Gen.typeCtor <$> TidyM.importFrom "Network.Ethereum.Web3.Solidity" (TidyM.importType "Tuple0")
@@ -678,4 +678,4 @@ eventId (SolidityEvent e) =
   let
     eventArgs = map (\a -> format a) e.inputs
   in
-    fromByteString $ keccak256 $ e.name <> "(" <> joinWith "," eventArgs <> ")"
+    fromBuffer $ keccak256 $ e.name <> "(" <> joinWith "," eventArgs <> ")"