diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,8 @@
 # Revision history for system-linux-memory
 
+## 0.1.1.1  -- 2021-10-08
+* Support ghc 8.10 and 9.0
+
 ## 0.1.1.0  -- 2020-04-04
 
 * Add `/proc/<pid>/net/tcp` parser (thanks Maarten)
diff --git a/System/Linux/Proc/MemInfo.hs b/System/Linux/Proc/MemInfo.hs
--- a/System/Linux/Proc/MemInfo.hs
+++ b/System/Linux/Proc/MemInfo.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE CPP #-}
 {-# LANGUAGE OverloadedStrings #-}
 
 module System.Linux.Proc.MemInfo
@@ -18,7 +19,9 @@
 import qualified Data.List as List
 import qualified Data.Map.Strict as Map
 import           Data.Maybe (mapMaybe)
+#if ! MIN_VERSION_base(4,14,0)
 import           Data.Monoid ((<>))
+#endif
 import           Data.Text (Text)
 import qualified Data.Text as Text
 import           Data.Word (Word64)
@@ -36,7 +39,7 @@
   , memFree :: !Word64 -- ^ Total free RAM (which includes memory used for filesystem caching).
   , memAvailable :: !Word64 -- ^ Available memory.
   , memBuffers :: !Word64 -- ^ Amount of RAM used for file buffers.
-  , memSwapTotal :: !Word64 -- ^ Total about of swap space.
+  , memSwapTotal :: !Word64 -- ^ Total amount of swap space.
   , memSwapFree :: !Word64 -- ^ Amount of swap space that is free.
   } deriving (Eq, Show)
 
diff --git a/system-linux-proc.cabal b/system-linux-proc.cabal
--- a/system-linux-proc.cabal
+++ b/system-linux-proc.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                system-linux-proc
-version:             0.1.1
+version:             0.1.1.1
 synopsis:            A library for accessing the /proc filesystem in Linux
 -- description:
 homepage:            https://github.com/erikd/system-linux-proc
@@ -15,7 +15,7 @@
 build-type:          Simple
 extra-source-files:  ChangeLog.md
 stability:           provisional
-cabal-version:       >=1.10
+cabal-version:       >= 1.10
 
 library
   default-language:   Haskell2010
@@ -32,7 +32,7 @@
   build-depends:       base                          >= 4.8         && < 5.0
                      , attoparsec                    >= 0.12        && < 0.14
                      , bytestring                    == 0.10.*
-                     , containers                    == 0.5.*
+                     , containers                    >= 0.5         && < 0.7
                      , directory                     >= 1.2         && < 1.4
                      , errors                        == 2.3.*
                      , text                          == 1.2.*