diff --git a/ChangeLog.md b/ChangeLog.md
index 90cda79116e9d0b433f4f47ccfe4a946b98b2f0e..f956a1c33c35a09ceb5579bc89c3caa13c3ad462 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,6 +1,6 @@
 # Changelog for tahoe-lafs-immutable-uploader
 
-## 0.2.0.0 (unreleased)
+## 0.2.0.0 (2023-10-02)
 
 * `decode` now checks the fingerprint in the read capability against the URI
   extension block in shares being decoded and signals an error instead of
@@ -24,7 +24,7 @@
 
 * The `cereal`, `cipher-aes128`, `crypto-api`, `tagged`, and `monad-loop`
   direct dependencies have been dropped.  `cryptonite` (already a dependency)
-  is now used for AES128 operations.
+  is now used for AES128 operations. (!54)
 
 ## 0.1.0.2
 
diff --git a/flake.nix b/flake.nix
index 9edd3f8f9612afb46ef444e46deb83f2c3a6f8bd..c01cdda2fd2759cdd2953dfd5a90b46a48e1db00 100644
--- a/flake.nix
+++ b/flake.nix
@@ -77,11 +77,14 @@
         program = "${
           pkgs.writeShellApplication {
             name = "release";
-            runtimeInputs = with pkgs; [cabal-install];
+            runtimeInputs = with pkgs; [
+              cabal-install
+              haskell.compiler.${ghcVersion}
+            ];
             text = ''
               set -x
               sdist=$(cabal sdist | tail -n 1)
-              haddocks=$(cabal haddock --haddock-for-hackage | tail -n 1)
+              haddocks=$(cabal haddock --enable-doc --haddock-for-hackage | tail -n 1)
               cabal upload "$sdist"
               cabal upload --documentation "$haddocks"
             '';
diff --git a/tahoe-chk.cabal b/tahoe-chk.cabal
index 97313b9a4d895ae457c582825014b772fad9f332..bf1ebc738c5ba19f0f8d6cb993421091d99cded8 100644
--- a/tahoe-chk.cabal
+++ b/tahoe-chk.cabal
@@ -1,11 +1,13 @@
 cabal-version:      1.12
 name:               tahoe-chk
-version:            0.1.0.2
+version:            0.2.0.0
 synopsis:
   The Tahoe-LAFS' Content-Hash-Key (CHK) cryptographic protocol.
 
 description:
-  Please see the README on GitHub at <https://whetstone.private.storage/privatestorage/tahoe-chk/-/blob/main/README.md>
+  Reversibly encrypt plaintext, encode ciphertext to shares, and serialize
+  shares to bytes such that confidentiality, integrity, and authenticity are
+  assured.
 
 homepage:           https://whetstone.private.storage/privatestorage/tahoe-chk
 bug-reports:
@@ -65,7 +67,7 @@ library
     , concurrency         >=1.11     && <2
     , containers          >=0.6.0.1  && <0.7
     , cryptonite          >=0.27     && <0.31
-    , deepseq
+    , deepseq             >=1.1      && <1.6
     , directory           >=1.3.3    && <1.4
     , extra               >=1.7.7    && <1.8
     , fec                 >=0.1.1    && <0.2