diff --git a/Data/Digest/Murmur32.hs b/Data/Digest/Murmur32.hs
--- a/Data/Digest/Murmur32.hs
+++ b/Data/Digest/Murmur32.hs
@@ -193,9 +193,9 @@
     hash32Add c `combine` hash32Add d
 
 instance Hashable32 B.ByteString where
-  hash32Add = B.foldl go (hash32AddWord32 8)
-    where go acc b = acc `combine` hash32AddWord32 (fromIntegral b)
+  hash32Add bs h = B.foldl' go (hash32AddWord32 8 h) bs
+    where go acc b = hash32AddWord32 (fromIntegral b) acc
 
 instance Hashable32 L.ByteString where
-  hash32Add = L.foldl go (hash32AddWord32 9)
-    where go acc b = acc `combine` hash32AddWord32 (fromIntegral b)
+  hash32Add bs h = L.foldl' go (hash32AddWord32 9 h) bs
+    where go acc b = hash32AddWord32 (fromIntegral b) acc
diff --git a/Data/Digest/Murmur64.hs b/Data/Digest/Murmur64.hs
--- a/Data/Digest/Murmur64.hs
+++ b/Data/Digest/Murmur64.hs
@@ -189,9 +189,9 @@
     hash64Add c `combine` hash64Add d
 
 instance Hashable64 B.ByteString where
-  hash64Add = B.foldl go (hash64AddWord64 8)
-    where go acc b = acc `combine` hash64AddWord64 (fromIntegral b)
+  hash64Add bs h = B.foldl' go (hash64AddWord64 8 h) bs
+    where go acc b = hash64AddWord64 (fromIntegral b) acc
 
 instance Hashable64 L.ByteString where
-  hash64Add = L.foldl go (hash64AddWord64 9)
-    where go acc b = acc `combine` hash64AddWord64 (fromIntegral b)
+  hash64Add bs h = L.foldl' go (hash64AddWord64 9 h) bs
+    where go acc b = hash64AddWord64 (fromIntegral b) acc
diff --git a/changelog.md b/changelog.md
--- a/changelog.md
+++ b/changelog.md
@@ -1,3 +1,12 @@
+### 0.1.0.11
+
+  - Fix space leak in `ByteString` instances
+    (PR [#15](https://github.com/nominolo/murmur-hash/pull/15)).
+    Fixes issue [#17](https://github.com/nominolo/murmur-hash/issues/17).
+
+  - Build tested with GHC 8.0 - 9.12.0.
+
+
 ### 0.1.0.10
 
   - Replace use of deprecated `bitSize` by `finiteBitSize`
diff --git a/murmur-hash.cabal b/murmur-hash.cabal
--- a/murmur-hash.cabal
+++ b/murmur-hash.cabal
@@ -1,15 +1,15 @@
+Cabal-Version:   1.18
 Name:            murmur-hash
-Version:         0.1.0.10
+Version:         0.1.0.11
 License:         BSD3
 License-File:    LICENSE
 Author:          Thomas Schilling
-Maintainer:      Thomas Schilling <nominolo@googlemail.com>
-Homepage:        http://github.com/nominolo/murmur-hash
+Maintainer:      Andreas Abel
+Homepage:        https://github.com/nominolo/murmur-hash
 Synopsis:        MurmurHash2 implementation for Haskell.
 Description:
   Implements MurmurHash2, a good, fast, general-purpose,
-  non-cryptographic hashing function.  See
-  <http://murmurhash.googlepages.com/> for details.
+  non-cryptographic hashing function.
   .
   This implementation is pure Haskell, so it might be a bit slower
   than a C FFI binding.
@@ -17,14 +17,28 @@
 Category:        Data, Digest
 Stability:       provisional
 Build-Type:      Simple
-Cabal-Version:   >= 1.10
-Extra-Source-Files: changelog.md
+Extra-Doc-Files: changelog.md
 
+tested-with:
+  GHC == 9.12.0
+  GHC == 9.10.1
+  GHC == 9.8.2
+  GHC == 9.6.6
+  GHC == 9.4.8
+  GHC == 9.2.8
+  GHC == 9.0.2
+  GHC == 8.10.7
+  GHC == 8.8.4
+  GHC == 8.6.5
+  GHC == 8.4.4
+  GHC == 8.2.2
+  GHC == 8.0.2
+
 Library
   Default-Language: Haskell2010
   Build-Depends:
     base          >= 4.7 && < 5,
-    bytestring    >= 0.9 && < 0.12
+    bytestring    >= 0.9 && < 0.13
 
   exposed-modules:
     Data.Digest.Murmur32
@@ -32,4 +46,4 @@
 
 Source-repository head
   Type:       git
-  Location:   git://github.com/nominolo/murmur-hash.git
+  Location:   https://github.com/nominolo/murmur-hash.git