diff --git a/CHANGELOG.md b/CHANGELOG.md
index 07117b0e..4734480f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,16 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to
 [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.2.1](https://github.com/CosmWasm/sylvia/compare/sylvia-derive-v1.2.0...sylvia-derive-v1.2.1) - 2024-08-22
+
+### Fixed
+
+- Allow deprecated InterfaceApi in generated code
+- Revert removal of `, custom` parameter support in entry_points macro
+- Revert removal of InterfaceApi
+- Deprecate `, custom` parameter in `entry_points` macro. Will be removed in `2.0.0`.
+- Deprecate `InterfaceApi`. Will be removed in `2.0.0`. Use generated `sv::InterfaceMessagesApi` instead.
+
 ## [1.2.0](https://github.com/CosmWasm/sylvia/compare/sylvia-derive-v1.1.0...sylvia-derive-v1.2.0) - 2024-08-20
 
 ### Added
diff --git a/Cargo.lock b/Cargo.lock
index 928c345b..5ddf2429 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -397,9 +397,9 @@ dependencies = [
 
 [[package]]
 name = "cw-multi-test"
-version = "2.1.0"
+version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e0034bfb4c06dfc8b50f0b1a06c3fc0f2312a1bae568a97db65930de071288ba"
+checksum = "b0ae276e7a06ad1b7e7da78a3d68aba80634cde30ee7fe8259a94e653603fef8"
 dependencies = [
  "anyhow",
  "bech32",
@@ -674,15 +674,6 @@ dependencies = [
  "either",
 ]
 
-[[package]]
-name = "itertools"
-version = "0.12.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba291022dbbd398a455acf126c1e341954079855bc60dfdda641363bd6922569"
-dependencies = [
- "either",
-]
-
 [[package]]
 name = "itertools"
 version = "0.13.0"
@@ -863,9 +854,9 @@ dependencies = [
 
 [[package]]
 name = "prost"
-version = "0.12.6"
+version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "deb1435c188b76130da55f17a466d252ff7b1418b2ad3e037d127b94e3411f29"
+checksum = "e13db3d3fde688c61e2446b4d843bc27a7e8af269a69440c0308021dc92333cc"
 dependencies = [
  "bytes",
  "prost-derive",
@@ -873,12 +864,12 @@ dependencies = [
 
 [[package]]
 name = "prost-derive"
-version = "0.12.6"
+version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "81bddcdb20abf9501610992b6759a4c888aef7d1a7247ef75e2404275ac24af1"
+checksum = "18bec9b0adc4eba778b33684b7ba3e7137789434769ee3ce3930463ef904cfca"
 dependencies = [
  "anyhow",
- "itertools 0.12.1",
+ "itertools 0.13.0",
  "proc-macro2",
  "quote",
  "syn 2.0.75",
@@ -1115,7 +1106,7 @@ checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
 
 [[package]]
 name = "sylvia"
-version = "1.2.0"
+version = "1.2.1"
 dependencies = [
  "anyhow",
  "cosmwasm-schema",
@@ -1136,7 +1127,7 @@ dependencies = [
 
 [[package]]
 name = "sylvia-derive"
-version = "1.2.0"
+version = "1.2.1"
 dependencies = [
  "convert_case",
  "cosmwasm-schema",
diff --git a/Cargo.toml b/Cargo.toml
index 44d81ea8..0b76ff15 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,10 +4,10 @@ exclude = ["examples/*"]
 resolver = "2"
 
 [workspace.package]
-version = "1.2.0"
+version = "1.2.1"
 
 [workspace.dependencies]
-sylvia-derive = { version = "1.2.0", path = "sylvia-derive" }
+sylvia-derive = { version = "1.2.1", path = "sylvia-derive" }
 anyhow = "1.0.86"
 cosmwasm-schema = "2.1.1"
 cosmwasm-std = "2.1.1"
diff --git a/examples/Cargo.lock b/examples/Cargo.lock
index b5c00ff3..d8596061 100644
--- a/examples/Cargo.lock
+++ b/examples/Cargo.lock
@@ -1343,7 +1343,7 @@ checksum = "81cdd64d312baedb58e21336b31bc043b77e01cc99033ce76ef539f78e965ebc"
 
 [[package]]
 name = "sylvia"
-version = "1.2.0"
+version = "1.2.1"
 dependencies = [
  "anyhow",
  "cosmwasm-schema",
@@ -1360,7 +1360,7 @@ dependencies = [
 
 [[package]]
 name = "sylvia-derive"
-version = "1.2.0"
+version = "1.2.1"
 dependencies = [
  "convert_case",
  "itertools 0.13.0",