diff --git a/.github/workflows/explorer/docker-compose.yaml b/.github/workflows/explorer/docker-compose.yaml
index d5429b9bdad..dccbe76b0ed 100644
--- a/.github/workflows/explorer/docker-compose.yaml
+++ b/.github/workflows/explorer/docker-compose.yaml
@@ -2,7 +2,7 @@ version: "3.9"
 
 services:
   cardano-node:
-    image: ghcr.io/intersectmbo/cardano-node:8.8.0-pre
+    image: ghcr.io/intersectmbo/cardano-node:8.9.0
     volumes:
       - /srv/var/cardano/state-sanchonet:/data
     environment:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7942cbcea67..1e45dc76ef2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,7 +13,7 @@ changes.
 
 - **DO NOT RELEASE** as only tested against Sanchonet.
 
-- **BREAKING** Update to and tested against `cardano-node 8.8.0-pre` and `cardano-cli 8.20`. This made smoke tests incompatible with public testnets and mainnet.
+- **BREAKING** Update to and tested against `cardano-node 8.9.0` and `cardano-cli 8.20.3.0`. This made smoke tests incompatible with public testnets and mainnet.
 
 - **BREAKING** Hydra scripts changed due to updates in the `plutus` toolchain:
   - Overall slight increase in script size.
diff --git a/docs/docs/tutorial/index.md b/docs/docs/tutorial/index.md
index 133cef43923..aba15485231 100644
--- a/docs/docs/tutorial/index.md
+++ b/docs/docs/tutorial/index.md
@@ -44,7 +44,7 @@ mkdir -p bin
 version=0.15.0
 curl -L -O https://github.com/input-output-hk/hydra/releases/download/${version}/hydra-x86_64-linux-${version}.zip
 unzip -d bin hydra-x86_64-linux-${version}.zip
-curl -L -o - https://github.com/input-output-hk/cardano-node/releases/download/8.8.0-pre/cardano-node-8.8.0-linux.tar.gz \
+curl -L -o - https://github.com/input-output-hk/cardano-node/releases/download/8.9.0/cardano-node-8.9.0-linux.tar.gz \
   | tar xz -C bin ./cardano-node ./cardano-cli
 curl -L -o - https://github.com/input-output-hk/mithril/releases/download/2347.0/mithril-2347.0-linux-x64.tar.gz \
   | tar xz -C bin mithril-client
@@ -59,9 +59,9 @@ mkdir -p bin
 version=0.15.0
 curl -L -O https://github.com/input-output-hk/hydra/releases/download/${version}/hydra-aarch64-darwin-${version}.zip
 unzip -d bin hydra-aarch64-darwin-${version}.zip
-curl -L -o - https://github.com/input-output-hk/hydra/releases/download/${version}/cardano-node-aarch-darwin-8.8.0.zip
-unzip -d bin cardano-node-8.8.0-linux.zip
-curl -L -o - https://github.com/input-output-hk/cardano-node/releases/download/8.8.0-pre/cardano-node-8.8.0-macos.tar.gz \
+curl -L -o - https://github.com/input-output-hk/hydra/releases/download/${version}/cardano-node-aarch-darwin-8.9.0.zip
+unzip -d bin cardano-node-8.9.0-linux.zip
+curl -L -o - https://github.com/input-output-hk/cardano-node/releases/download/8.9.0/cardano-node-8.9.0-macos.tar.gz \
   | tar xz -C bin --wildcards ./cardano-node ./cardano-cli '*.dylib'
 chmod +x bin/*
 ```
diff --git a/flake.lock b/flake.lock
index ef97cd72b0c..0b1c89a40a9 100644
--- a/flake.lock
+++ b/flake.lock
@@ -20,11 +20,11 @@
     "CHaP_2": {
       "flake": false,
       "locked": {
-        "lastModified": 1707293988,
-        "narHash": "sha256-UAa4nL8qhPyI133IJOPMBgLECa91CPPwwhypFXKm7Fw=",
+        "lastModified": 1709731402,
+        "narHash": "sha256-7h4/ns3WRI3BtK1FbUEm6nMqW1ahNNehiHr7eQ03muk=",
         "owner": "intersectmbo",
         "repo": "cardano-haskell-packages",
-        "rev": "501510e79f9cf76012cba0e86f88fa0b8b053fbd",
+        "rev": "8e4f211a8e537c8c939b65e887556bd7441c774c",
         "type": "github"
       },
       "original": {
@@ -99,17 +99,17 @@
     "blst": {
       "flake": false,
       "locked": {
-        "lastModified": 1656163412,
-        "narHash": "sha256-xero1aTe2v4IhWIJaEDUsVDOfE77dOV5zKeHWntHogY=",
+        "lastModified": 1691598027,
+        "narHash": "sha256-oqljy+ZXJAXEB/fJtmB8rlAr4UXM+Z2OkDa20gpILNA=",
         "owner": "supranational",
         "repo": "blst",
-        "rev": "03b5124029979755c752eec45f3c29674b558446",
+        "rev": "3dd0f804b1819e5d03fb22ca2e6fac105932043a",
         "type": "github"
       },
       "original": {
         "owner": "supranational",
+        "ref": "v0.3.11",
         "repo": "blst",
-        "rev": "03b5124029979755c752eec45f3c29674b558446",
         "type": "github"
       }
     },
@@ -305,16 +305,16 @@
         "utils": "utils_2"
       },
       "locked": {
-        "lastModified": 1707399758,
-        "narHash": "sha256-pWXI8dyqKQ3HncbBtd54wdHi3Pj7J5y+nybqpzMXOj4=",
+        "lastModified": 1709733493,
+        "narHash": "sha256-chcwbks+HyImFk7FpbkC7FFmfpScMx5T7K0TzTkGAww=",
         "owner": "intersectmbo",
         "repo": "cardano-node",
-        "rev": "4bb2048db77d623ee6e3678618c2d8b6c4676333",
+        "rev": "0d98405a60d57e1c8e13406d51cce0e34356bd64",
         "type": "github"
       },
       "original": {
         "owner": "intersectmbo",
-        "ref": "8.8.0-pre",
+        "ref": "8.9.0",
         "repo": "cardano-node",
         "type": "github"
       }
@@ -952,11 +952,11 @@
     "hackageNix": {
       "flake": false,
       "locked": {
-        "lastModified": 1707178947,
-        "narHash": "sha256-zK4s98xucxwefNtf7Ewc42lQkb5ZXNzFV4sOliif8Rg=",
+        "lastModified": 1709684582,
+        "narHash": "sha256-+rC8Vpaxdd4Nw2fJIn9wzAnzW5arILly5AkTG6chRAw=",
         "owner": "input-output-hk",
         "repo": "hackage.nix",
-        "rev": "ef22972dd06ed3359945489b582849fdf680c583",
+        "rev": "c2ed9aa79252ed67a1fb694b3fffaf7dd7ead6d2",
         "type": "github"
       },
       "original": {
@@ -1007,11 +1007,11 @@
         "stackage": "stackage"
       },
       "locked": {
-        "lastModified": 1707180591,
-        "narHash": "sha256-MR/sPRfbtab9AEgvTb70VU94MDqEXFNM3RnMfb10gT8=",
+        "lastModified": 1708911681,
+        "narHash": "sha256-QGkzPN1HUYxgMU2EwiwjMvR2gQF0ffUdxALq1+bOdcY=",
         "owner": "input-output-hk",
         "repo": "haskell.nix",
-        "rev": "0a4c42df4321e510f38affa11a2109e84a5399e4",
+        "rev": "5031fa0b8346fcc533c33073530ca87b8390add3",
         "type": "github"
       },
       "original": {
@@ -1504,11 +1504,11 @@
         "sodium": "sodium"
       },
       "locked": {
-        "lastModified": 1707337252,
-        "narHash": "sha256-sliOZlzvx3sG+YqkgcXqK7Va0OyYFD+VPWiEK+qeoNI=",
+        "lastModified": 1709083850,
+        "narHash": "sha256-6DQ89ktt8rRVV1pXEyX2JwPjaqS0mQkelkmJmka04rg=",
         "owner": "input-output-hk",
         "repo": "iohk-nix",
-        "rev": "3358489541bdc1228afaa678c2adf4bb891f560e",
+        "rev": "1c793a53ac0bd99b795c2180eb23d37e8389a74b",
         "type": "github"
       },
       "original": {
@@ -2836,11 +2836,11 @@
     "stackage": {
       "flake": false,
       "locked": {
-        "lastModified": 1707178218,
-        "narHash": "sha256-3JatI3pDGahu+k5povDpQWBnMbngfL/8aKPLU4PsAxM=",
+        "lastModified": 1708906175,
+        "narHash": "sha256-KJDF0CO077Jx4GjjPK6pNkx6NkY7p1x5RMPfaIe8nl4=",
         "owner": "input-output-hk",
         "repo": "stackage.nix",
-        "rev": "43eb3859170423a3c1f048815070ed10099f7e5c",
+        "rev": "bfa4778050cf69fe50f91d39dcefbb9005d6d0d0",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 7aaaf256e2a..6bc0e26fd4b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -18,7 +18,7 @@
       url = "github:cardano-scaling/haskell-language-server?ref=2.6-patched";
       flake = false;
     };
-    cardano-node.url = "github:intersectmbo/cardano-node/8.8.0-pre";
+    cardano-node.url = "github:intersectmbo/cardano-node/8.9.0";
     mithril.url = "github:input-output-hk/mithril/2347.0";
     nix-npm-buildpackage.url = "github:serokell/nix-npm-buildpackage";
   };
diff --git a/hydra-cluster/test/Test/CardanoNodeSpec.hs b/hydra-cluster/test/Test/CardanoNodeSpec.hs
index 7d647119d1d..34901db4680 100644
--- a/hydra-cluster/test/Test/CardanoNodeSpec.hs
+++ b/hydra-cluster/test/Test/CardanoNodeSpec.hs
@@ -22,7 +22,7 @@ spec = do
   -- false positives test errors in case someone uses an "untested" /
   -- different than in shell.nix version of cardano-node and cardano-cli.
   it "has expected cardano-node version available" $
-    getCardanoNodeVersion >>= (`shouldContain` "8.8.0")
+    getCardanoNodeVersion >>= (`shouldContain` "8.9.0")
 
   around (failAfter 5 . setupTracerAndTempDir) $ do
     it "withCardanoNodeDevnet does start a block-producing devnet within 5 seconds" $ \(tr, tmp) ->
diff --git a/hydra-cluster/test/Test/Hydra/Cluster/CardanoCliSpec.hs b/hydra-cluster/test/Test/Hydra/Cluster/CardanoCliSpec.hs
index 69020d742dc..23512a1f5d4 100644
--- a/hydra-cluster/test/Test/Hydra/Cluster/CardanoCliSpec.hs
+++ b/hydra-cluster/test/Test/Hydra/Cluster/CardanoCliSpec.hs
@@ -36,7 +36,7 @@ spec =
             Just something -> something == "Witnessed Tx BabbageEra"
 
     it "has expected cardano-cli version available" $
-      readProcess "cardano-cli" ["--version"] "" >>= (`shouldContain` "8.20.0.0")
+      readProcess "cardano-cli" ["--version"] "" >>= (`shouldContain` "8.20.3.0")
 
     around (showLogsOnFailure "CardanoCliSpec") $ do
       it "query protocol-parameters is compatible with our FromJSON instance" $ \tracer ->
diff --git a/hydra-explorer/hydra-explorer.cabal b/hydra-explorer/hydra-explorer.cabal
index 1856d893d70..3a04be7c6ab 100644
--- a/hydra-explorer/hydra-explorer.cabal
+++ b/hydra-explorer/hydra-explorer.cabal
@@ -83,7 +83,6 @@ test-suite tests
     , filepath
     , hspec
     , hspec-wai
-    , http-types
     , hydra-chain-observer
     , hydra-explorer
     , hydra-node
@@ -92,7 +91,6 @@ test-suite tests
     , lens
     , openapi3
     , QuickCheck
-    , wai-extra
     , yaml
 
   other-modules:
diff --git a/hydra-explorer/test/Hydra/ExplorerSpec.hs b/hydra-explorer/test/Hydra/ExplorerSpec.hs
index c298b5ac926..25743a3f3c6 100644
--- a/hydra-explorer/test/Hydra/ExplorerSpec.hs
+++ b/hydra-explorer/test/Hydra/ExplorerSpec.hs
@@ -24,8 +24,6 @@ import Data.OpenApi (
 import Data.Yaml qualified as Yaml
 import Hydra.Explorer (httpApp)
 import Hydra.Logging (nullTracer)
-import Network.HTTP.Types (statusCode)
-import Network.Wai.Test (SResponse (..))
 import System.FilePath ((</>))
 import Test.Hspec.Wai (MatchBody (..), ResponseMatcher (ResponseMatcher), shouldRespondWith, (<:>))
 import Test.Hspec.Wai qualified as Wai
diff --git a/hydra-node/hydra-node.cabal b/hydra-node/hydra-node.cabal
index 91c3669df0f..7ce511f8655 100644
--- a/hydra-node/hydra-node.cabal
+++ b/hydra-node/hydra-node.cabal
@@ -332,7 +332,6 @@ test-suite tests
     , cardano-ledger-alonzo
     , cardano-ledger-api
     , cardano-ledger-babbage:{cardano-ledger-babbage, testlib}
-    , cardano-ledger-binary
     , cardano-ledger-core
     , cardano-ledger-mary
     , cardano-ledger-shelley