diff --git a/.changes/20270801_updates.yml b/.changes/20270801_updates.yml
new file mode 100644
index 0000000000..e702882a67
--- /dev/null
+++ b/.changes/20270801_updates.yml
@@ -0,0 +1,6 @@
+project: cardano-api
+pr: 1275
+kind:
+  - maintenance
+description: |
+  Minor updates including updating index-states and removing redundant orphan instances
diff --git a/cabal.project b/cabal.project
index 4c8d685422..76468b9651 100644
--- a/cabal.project
+++ b/cabal.project
@@ -13,8 +13,8 @@ repository cardano-haskell-packages
 -- See CONTRIBUTING for information about these, including some Nix commands
 -- you need to run if you change them
 index-state:
-  , hackage.haskell.org 2026-07-01T00:33:51Z
-  , cardano-haskell-packages 2026-06-29T12:05:19Z
+  , hackage.haskell.org 2026-08-02T17:21:34Z
+  , cardano-haskell-packages 2026-08-01T07:19:24Z
 
 active-repositories:
   , :rest
@@ -155,8 +155,6 @@ if impl(ghc >=9.14)
     , grapesy:tls
     , grpc-spec:base
     , grpc-spec:containers
-    , hedgehog-quickcheck:QuickCheck
-    , http2-tls:tls
     , lens-family:containers
     , lens-family-core:containers
     , lsm-tree:data-elevator
diff --git a/cardano-api/src/Cardano/Api/Internal/Orphans/Serialisation.hs b/cardano-api/src/Cardano/Api/Internal/Orphans/Serialisation.hs
index aad6036ba9..785de38b13 100644
--- a/cardano-api/src/Cardano/Api/Internal/Orphans/Serialisation.hs
+++ b/cardano-api/src/Cardano/Api/Internal/Orphans/Serialisation.hs
@@ -213,12 +213,6 @@ deriving anyclass instance ToJSON L.VotingPeriod
 
 deriving anyclass instance ToJSON L.Withdrawals
 
-instance (ToJSONKey k, ToJSON v) => ToJSON (NonEmptyMap k v) where
-  toJSON = toJSON . NonEmptyMap.toMap
-
-instance ToJSON v => ToJSON (NonEmptySet v) where
-  toJSON = toJSON . NonEmptySet.toSet
-
 deriving anyclass instance
   ( ToJSON (L.PredicateFailure (L.EraRule "UTXOW" ledgerera))
   , ToJSON (L.PredicateFailure (L.EraRule "DELEGS" ledgerera))
diff --git a/flake.lock b/flake.lock
index 0bc567ecd1..5638a55eac 100644
--- a/flake.lock
+++ b/flake.lock
@@ -3,11 +3,11 @@
     "CHaP": {
       "flake": false,
       "locked": {
-        "lastModified": 1782769557,
-        "narHash": "sha256-tCYMTwH15mNajHybvC3KGVPBPMlLlqIOYE0ZgcqRkJU=",
+        "lastModified": 1785570519,
+        "narHash": "sha256-BHS8utevwG8smiRJzgKqk/Y+az2r4r8Zs9dD3PL+oPo=",
         "owner": "intersectmbo",
         "repo": "cardano-haskell-packages",
-        "rev": "3ee6b1ecce230d62f0083590f38c4ae3457da226",
+        "rev": "3b065389055ced74890b09d772e3b1fe81df49ef",
         "type": "github"
       },
       "original": {
@@ -439,11 +439,11 @@
     "hackageNix": {
       "flake": false,
       "locked": {
-        "lastModified": 1782962365,
-        "narHash": "sha256-60rASaqJX9GbdbbHappidbeH8kSxWYF9LvxK9u2A/Is=",
+        "lastModified": 1785728842,
+        "narHash": "sha256-3R5qunuAddR7849eVthkALRrKcXLPMd2LeQVPH/+lRs=",
         "owner": "input-output-hk",
         "repo": "hackage.nix",
-        "rev": "f4163dbd37cd4000a755bd242df326e7870c1b88",
+        "rev": "a69c841fe2cbb3571739018f9efb7f533279fb15",
         "type": "github"
       },
       "original": {