diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Change Log
 
+## 0.17.0.2 - 2022-02-14
+
+* Clarify usage of IntMap EventType in ppEvent ([#80](https://github.com/haskell/ghc-events/pull/80))
+* Relax upper version bound for text
+
 ## 0.17.0.1 - 2021-11-22
 
 * Relax base bound to support GHC-9.2.1 ([#78](https://github.com/haskell/ghc-events/pull/78))
diff --git a/ghc-events.cabal b/ghc-events.cabal
--- a/ghc-events.cabal
+++ b/ghc-events.cabal
@@ -1,6 +1,6 @@
 cabal-version:    2.4
 name:             ghc-events
-version:          0.17.0.1
+version:          0.17.0.2
 synopsis:         Library and tool for parsing .eventlog files from GHC
 description:      Parses .eventlog files emitted by GHC 6.12.1 and later.
                   Includes the ghc-events tool permitting, in particular,
@@ -57,7 +57,7 @@
                     binary     >= 0.7 && < 0.11,
                     bytestring >= 0.10.4,
                     array      >= 0.2 && < 0.6,
-                    text       >= 0.11.2.3 && < 1.3,
+                    text       >= 0.11.2.3 && < 2.1,
                     vector     >= 0.7 && < 0.13
   exposed-modules:  GHC.RTS.Events,
                     GHC.RTS.Events.Incremental
diff --git a/src/GHC/RTS/Events.hs b/src/GHC/RTS/Events.hs
--- a/src/GHC/RTS/Events.hs
+++ b/src/GHC/RTS/Events.hs
@@ -621,7 +621,10 @@
   <> maybe "variable" TB.decimal msz <> ")"
 
 -- | Pretty prints an 'Event', with clean handling for 'UnknownEvent'
-ppEvent :: IntMap EventType -> Event -> String
+ppEvent
+  :: IntMap EventType -- ^ Look up @'UnknownEvent'.'ref'@ to find a suitable description.
+  -> Event
+  -> String
 ppEvent imap = TL.unpack . TB.toLazyText . buildEvent imap
 
 buildEvent :: IntMap EventType -> Event -> TB.Builder