diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+# 0.5.1.1. (2022-06-15)
+
+- Support `aeson-2.1.0.0`
+- Drop unused package dependencies
+
 # 0.5.1 (2021-09-10)
 
 - Support `aeson-2.0.0.0`
diff --git a/aeson-extra.cabal b/aeson-extra.cabal
--- a/aeson-extra.cabal
+++ b/aeson-extra.cabal
@@ -1,6 +1,6 @@
 cabal-version:      >=1.10
 name:               aeson-extra
-version:            0.5.1
+version:            0.5.1.1
 synopsis:           Extra goodies for aeson
 description:
   Package provides extra functionality on top of @aeson@ and @aeson-compat@
@@ -22,6 +22,7 @@
    || ==8.8.4
    || ==8.10.4
    || ==9.0.1
+   || ==9.2.1
 
 build-type:         Simple
 extra-source-files:
@@ -36,22 +37,17 @@
   hs-source-dirs:   src
   ghc-options:      -Wall
   build-depends:
-      aeson                  >=1.5.4.1  && <1.6 || >=2.0 && <2.1
+      aeson                  >=1.5.4.1  && <1.6 || >=2.0 && <2.2
     , attoparsec             >=0.11.3.4 && <0.15
-    , attoparsec-iso8601     >=1.0      && <1.1
-    , base                   >=4.7      && <4.16
+    , base                   >=4.7      && <4.17
     , base-compat-batteries  >=0.11.2   && <0.13
     , bytestring             >=0.10     && <0.12
-    , containers             >=0.5      && <0.7
     , deepseq                >=1.3      && <1.5
-    , exceptions             >=0.8      && <0.11
-    , hashable               >=1.2      && <1.4
-    , parsec                 >=3.1.9    && <3.2
     , recursion-schemes      >=4.1.2    && <5.3
     , scientific             >=0.3      && <0.4
     , semialign              >=1        && <1.3
-    , template-haskell       >=2.8      && <2.18
-    , text                   >=1.2      && <1.3
+    , template-haskell       >=2.8      && <2.19
+    , text                   >=1.2      && <1.3 || >=2.0 && <2.1
     , these                  >=1        && <1.2
     , unordered-containers   >=0.2      && <0.3
     , vector                 >=0.10     && <0.13