diff --git a/Trace/Hpc/Tix.hs b/Trace/Hpc/Tix.hs
index 8e16c91f5407a972a52269e36143798d0a0dabd5..8f7d28550fb49a69d43e795990c3e3a6d78c64b7 100644
--- a/Trace/Hpc/Tix.hs
+++ b/Trace/Hpc/Tix.hs
@@ -31,7 +31,9 @@ data Tix = Tix [TixModule]
         deriving (Read, Show, Eq)
 
 #if __GLASGOW_HASKELL__ >= 704
+-- | @since 0.6.2.0
 deriving instance (Generic Tix)
+-- | @since 0.6.2.0
 instance NFData Tix
 #endif
 
@@ -43,7 +45,9 @@ data TixModule = TixModule
         deriving (Read, Show, Eq)
 
 #if __GLASGOW_HASKELL__ >= 704
+-- | @since 0.6.2.0
 deriving instance (Generic TixModule)
+-- | @since 0.6.2.0
 instance NFData TixModule
 #endif
 
diff --git a/Trace/Hpc/Util.hs b/Trace/Hpc/Util.hs
index 6b7284a394cdd59d47e3ec7571a392ec0ef23c8d..d72353afef03fd6c76965001b2d7d46992ff8a51 100644
--- a/Trace/Hpc/Util.hs
+++ b/Trace/Hpc/Util.hs
@@ -86,7 +86,9 @@ class HpcHash a where
 newtype Hash = Hash Word32 deriving (Eq)
 
 #if __GLASGOW_HASKELL__ >= 704
+-- | @since 0.6.2.0
 deriving instance (Generic Hash)
+-- | @since 0.6.2.0
 instance NFData Hash
 #endif
 
diff --git a/changelog.md b/changelog.md
index 7e2f05f4502621081811730c4d9816a70956a22a..6f1895a1325dd2c665e137d21fa8cacecb7471e2 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,4 +1,7 @@
 # Changelog for [`hpc` package](http://hackage.haskell.org/package/hpc)
+## 0.6.2.0  *September 2021*
+
+  * Addition of `NFData` instances for `Tix` and `TixModule`
 
 ## 0.6.1.0  *October 2019*
 
diff --git a/hpc.cabal b/hpc.cabal
index c172f7c75b2d6198c7fc2e9fabed80dc599d7674..f70a2aaa208eecbb4eb771ce46d2f0dd208078ab 100644
--- a/hpc.cabal
+++ b/hpc.cabal
@@ -1,5 +1,5 @@
 name:         hpc
-version:      0.6.1.0
+version:      0.6.2.0
 -- NOTE: Don't forget to update ./changelog.md
 license:      BSD3
 license-file: LICENSE