diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,14 @@
+0.5.2 (30/3/2021)
+=================
+* Update package dependency constraints
+
+0.5.1 (16/1/2021)
+=================
+* Lock Posix serial port for exclusive access
+* Simplify internal usage of serial port handles under both Posix and Windows
+* Add hWithSerial
+* Minor updates to make future refactoring easier
+
 0.5.0 (16/12/2020)
 ==================
 * Derive Show and Read instances for SerialPortSettings, CommSpeed, StopBits, Parity, and FlowControl datatypes.
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -1,4 +1,6 @@
 ![Haskell CI](https://github.com/standardsemiconductor/serialport/workflows/Haskell%20CI/badge.svg)
+[![Hackage][hackage-badge]][hackage]
+[![Hackage Dependencies][hackage-deps-badge]][hackage-deps]
 
 Objectives
 ==========
@@ -25,3 +27,7 @@
 -----------------
 * Run the tests: cabal test --test-options="/dev/ttyACM0 /dev/ttyUSB0"
 
+[hackage]:            <https://hackage.haskell.org/package/serialport>
+[hackage-badge]:      <https://img.shields.io/hackage/v/serialport.svg?color=success>
+[hackage-deps-badge]: <https://img.shields.io/hackage-deps/v/serialport.svg>
+[hackage-deps]:       <http://packdeps.haskellers.com/feed?needle=serialport>
diff --git a/serialport.cabal b/serialport.cabal
--- a/serialport.cabal
+++ b/serialport.cabal
@@ -1,5 +1,5 @@
 Name:           serialport
-Version:        0.5.1
+Version:        0.5.2
 Cabal-Version:  >= 1.10
 Build-Type:     Simple
 license:        BSD3
@@ -19,20 +19,21 @@
 
 source-repository head
   type:     git
-  location: git://github.com/standardsemiconductor/serialport.git
+  location: https://github.com/standardsemiconductor/serialport
 
 Library
   Exposed-Modules:    System.Hardware.Serialport
   Other-Modules:      System.Hardware.Serialport.Types
-  Build-Depends:      base >= 4 && < 5, bytestring
+  Build-Depends:      base       >= 4.12 && < 4.16, 
+                      bytestring >= 0.11 && < 0.12
   ghc-options:        -Wall -fno-warn-orphans
   default-language: Haskell2010
     
   if !os(windows)
-    Build-Depends:    unix
+    Build-Depends:    unix >= 2.7 && < 2.8
     Other-Modules:    System.Hardware.Serialport.Posix
   else
-    Build-Depends:    Win32
+    Build-Depends:    Win32 >= 2.11 && < 2.13
     Other-Modules:    System.Hardware.Serialport.Windows
                       System.Win32.Comm