diff --git a/changelog.md b/changelog.md
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,10 @@
 # Revision history for waargonaut
 
+## 0.5.2.1  -- 2019-01-08
+
+* Upgraded the nix overrides to use the overlay technique.
+* Lowered the bound on tagged to 0.8.5 which allowed it to be removed from the list of overridden packages.
+
 ## 0.5.2.0  -- 2019-01-03
 
 * Add `Waargonaut.Prettier` module that contains a traversal to modify a `Json` structure to add indentation and newlines.
diff --git a/waargonaut.cabal b/waargonaut.cabal
--- a/waargonaut.cabal
+++ b/waargonaut.cabal
@@ -10,7 +10,7 @@
 -- PVP summary:      +-+------- breaking API changes
 --                   | | +----- non-breaking API additions
 --                   | | | +--- code changes with no API change
-version:             0.5.2.0
+version:             0.5.2.1
 
 -- A short (one-line) description of the package.
 synopsis:            JSON wrangling
@@ -132,7 +132,7 @@
                      , hw-balancedparens   >= 0.2     && < 0.3
                      , hw-rankselect       >= 0.10    && < 0.13
                      , hw-bits             >= 0.7     && < 0.8
-                     , tagged              >= 0.8.6   && < 0.9
+                     , tagged              >= 0.8.5   && < 0.9
                      , semigroupoids       >= 5.2.2   && < 5.4
                      , natural             >= 0.3     && < 0.4
 
@@ -199,7 +199,7 @@
                      , generics-sop           >= 0.3.2  && < 0.4
                      , attoparsec             >= 0.13   && < 0.15
                      , scientific             >= 0.3    && < 0.4
-                     , tagged                 >= 0.8.6  && < 0.9
+                     , tagged                 >= 0.8.5  && < 0.9
                      , mtl                    >= 2.2.2  && < 2.3
                      , semigroupoids          >= 5.2.2  && < 5.6
                      , containers             >= 0.5.6  && < 0.7