diff --git a/bolty-streamly.cabal b/bolty-streamly.cabal
--- a/bolty-streamly.cabal
+++ b/bolty-streamly.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           bolty-streamly
-version:        0.1.0.1
+version:        0.1.0.2
 synopsis:       Streamly streaming interface for bolty Neo4j driver
 description:    Streaming queries over Neo4j using streamly streams.
                 Wraps bolty's query functions with streamly's Stream type for
@@ -65,7 +65,7 @@
   ghc-options: -Weverything -Wno-all-missed-specialisations -Wno-implicit-prelude -Wno-missed-specialisations -Wno-missing-import-lists -Wno-missing-safe-haskell-mode -Wno-name-shadowing -Wno-prepositive-qualified-module -Wno-safe -Wno-unsafe
   build-depends:
       base >=4.18 && <5
-    , bolty >=0.1.1.0 && <0.2
+    , bolty >=0.2.0.0 && <0.3
     , packstream-bolt ==0.1.*
     , streamly-core ==0.2.*
     , text >=2.0 && <2.2
@@ -106,7 +106,7 @@
   ghc-options: -Weverything -Wno-all-missed-specialisations -Wno-implicit-prelude -Wno-missed-specialisations -Wno-missing-import-lists -Wno-missing-safe-haskell-mode -Wno-name-shadowing -Wno-prepositive-qualified-module -Wno-safe -Wno-unsafe -threaded -rtsopts -with-rtsopts=-N -Wno-missing-export-lists -Wno-missing-local-signatures -Wno-monomorphism-restriction -Wno-unused-imports -Wno-unused-packages
   build-depends:
       base >=4.18 && <5
-    , bolty >=0.1.1.0 && <0.2
+    , bolty >=0.2.0.0 && <0.3
     , bolty-streamly
     , data-default
     , packstream-bolt ==0.1.*
@@ -151,7 +151,7 @@
   ghc-options: -Weverything -Wno-all-missed-specialisations -Wno-implicit-prelude -Wno-missed-specialisations -Wno-missing-import-lists -Wno-missing-safe-haskell-mode -Wno-name-shadowing -Wno-prepositive-qualified-module -Wno-safe -Wno-unsafe -threaded -rtsopts -with-rtsopts=-N -Wno-missing-export-lists -Wno-missing-local-signatures -Wno-monomorphism-restriction -Wno-unused-imports -Wno-unused-packages
   build-depends:
       base >=4.18 && <5
-    , bolty >=0.1.1.0 && <0.2
+    , bolty >=0.2.0.0 && <0.3
     , bolty-streamly
     , packstream-bolt ==0.1.*
     , sandwich
diff --git a/changelog.md b/changelog.md
--- a/changelog.md
+++ b/changelog.md
@@ -6,6 +6,15 @@
 and this project adheres to the
 [Haskell Package Versioning Policy](https://pvp.haskell.org/).
 
+## 0.1.0.2
+
+- Bump bolty dependency bound to `>= 0.2.0.0 && < 0.3` (was `>= 0.1.1.0 && < 0.2`).
+  Required by bolty 0.2.0.0's breaking changes: `Begin.mode` changed from `Char` to
+  the new `AccessMode` type, and `AccessMode(..)` moved from `Database.Bolty.Routing`
+  to the new `Database.Bolty.AccessMode` module (still re-exported from `Database.Bolty`).
+- Internal: `sessionAcquire` now threads the `AccessMode` value directly into `Begin`
+  instead of converting to a `Char` first. No behavioural change. Public API unchanged.
+
 ## 0.1.0.0
 
 - Initial release
diff --git a/src/Database/Bolty/Streamly.hs b/src/Database/Bolty/Streamly.hs
--- a/src/Database/Bolty/Streamly.hs
+++ b/src/Database/Bolty/Streamly.hs
@@ -65,6 +65,7 @@
 import           Streamly.Data.Stream           (Stream)
 import qualified Streamly.Data.Stream           as Stream
 
+import           Database.Bolty.AccessMode      (AccessMode(..))
 import           Database.Bolty.Connection      (requestResponseRunIO)
 import qualified Database.Bolty.Connection.Pipe as P
 import           Database.Bolty.Connection.Type
@@ -75,8 +76,7 @@
                                                   acquireConnection, releaseConnection,
                                                   releaseConnectionOnError)
 import           Database.Bolty.Record          (Record)
-import           Database.Bolty.Routing         (AccessMode(..), RoutingPool,
-                                                  acquireRoutingConnection)
+import           Database.Bolty.Routing         (RoutingPool, acquireRoutingConnection)
 import           Database.Bolty.Session         (Session(..), SessionPool(..), SessionConfig(..),
                                                   BookmarkManager, getBookmarks, updateBookmark)
 
@@ -326,12 +326,11 @@
 sessionAcquire :: SessionPool -> BookmarkManager -> SessionConfig -> IORef Bool
                -> AccessMode -> IO CheckedOutConnection
 sessionAcquire sPool sBookmarks sConfig _telRef mode = do
-  let modeChar = case mode of { ReadAccess -> 'r'; WriteAccess -> 'w' }
   let db = sessionDatabase sConfig
   coc <- acquireSessionConnection sPool mode
   let conn = cocConnection coc
   bms <- getBookmarks sBookmarks
-  P.beginTx conn $ Begin (V.fromList bms) Nothing H.empty modeChar db Nothing
+  P.beginTx conn $ Begin (V.fromList bms) Nothing H.empty mode db Nothing
   pure coc