diff --git a/blockfrost-api/CHANGELOG.md b/blockfrost-api/CHANGELOG.md
index 075d365..7af89ee 100644
--- a/blockfrost-api/CHANGELOG.md
+++ b/blockfrost-api/CHANGELOG.md
@@ -1,3 +1,7 @@
+# Version [next](https://github.com/blockfrost/blockfrost-haskell/compare/api-0.8.1.0-master) (2023-mm-dd)
+
+* Allow servant `0.20`
+
 # Version [0.8.1.0](https://github.com/blockfrost/blockfrost-haskell/compare/api-0.8.0.0...api-0.8.1.0) (2023-09-18)
 
 * Added `address` field to `AddressUtxo` [#38](https://github.com/blockfrost/blockfrost-haskell/pull/38)
diff --git a/blockfrost-api/blockfrost-api.cabal b/blockfrost-api/blockfrost-api.cabal
index 80ae4e4..7bda3b5 100644
--- a/blockfrost-api/blockfrost-api.cabal
+++ b/blockfrost-api/blockfrost-api.cabal
@@ -130,7 +130,7 @@ library
                       , deriving-aeson
                       , lens                     >= 5.0 && < 5.3
                       , template-haskell
-                      , servant                  >= 0.18 && < 0.20
+                      , servant                  >= 0.18 && < 0.21
                       , servant-docs
                       , servant-multipart-api
                       , safe-money               >= 0.9 && < 0.10
diff --git a/blockfrost-client-core/CHANGELOG.md b/blockfrost-client-core/CHANGELOG.md
index 6fc23e6..6c193f1 100644
--- a/blockfrost-client-core/CHANGELOG.md
+++ b/blockfrost-client-core/CHANGELOG.md
@@ -1,3 +1,7 @@
+# Version [next](https://github.com/blockfrost/blockfrost-haskell/compare/v0.6.0.0...master) (2023-mm-dd)
+
+* Allow servant `0.20`
+
 # Version [0.6.0.0](https://github.com/blockfrost/blockfrost-haskell/compare/v0.5.0.0...v0.6.0.0) (2022-08-31)
 
 * Additions
diff --git a/blockfrost-client-core/blockfrost-client-core.cabal b/blockfrost-client-core/blockfrost-client-core.cabal
index 7816ecd..34493ac 100644
--- a/blockfrost-client-core/blockfrost-client-core.cabal
+++ b/blockfrost-client-core/blockfrost-client-core.cabal
@@ -53,7 +53,7 @@ library
                       , http-client
                       , http-client-tls
                       , http-types
-                      , servant                  >= 0.18 && < 0.20
+                      , servant                  >= 0.18 && < 0.21
                       , servant-client
                       , servant-client-core
                       , servant-multipart-api
diff --git a/blockfrost-client/CHANGELOG.md b/blockfrost-client/CHANGELOG.md
index a395342..f18a011 100644
--- a/blockfrost-client/CHANGELOG.md
+++ b/blockfrost-client/CHANGELOG.md
@@ -1,3 +1,7 @@
+# Version [next](https://github.com/blockfrost/blockfrost-haskell/compare/client-0.7.1.1...master) (2023-mm-dd)
+
+* Allow servant `0.20`
+
 # Version [0.7.1.1](https://github.com/blockfrost/blockfrost-haskell/compare/v0.7.1.0...client-0.7.1.1) (2023-01-10)
 
 * Allow blockfrost-api `0.8`
diff --git a/blockfrost-client/blockfrost-client.cabal b/blockfrost-client/blockfrost-client.cabal
index 29cebbf..70a168a 100644
--- a/blockfrost-client/blockfrost-client.cabal
+++ b/blockfrost-client/blockfrost-client.cabal
@@ -72,7 +72,7 @@ library
                       , filepath
                       , text
                       , mtl
-                      , servant                  >= 0.18 && < 0.20
+                      , servant                  >= 0.18 && < 0.21
                       , servant-client
                       , servant-client-core