diff --git a/Cargo.lock b/Cargo.lock
index 801025ab8..0ebf7a10e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2423,7 +2423,7 @@ dependencies = [
 
 [[package]]
 name = "tket"
-version = "0.14.0"
+version = "0.15.0"
 dependencies = [
  "anyhow",
  "bytemuck",
@@ -2498,7 +2498,7 @@ dependencies = [
 
 [[package]]
 name = "tket-qsystem"
-version = "0.20.0"
+version = "0.21.0"
 dependencies = [
  "anyhow",
  "clap",
diff --git a/badger-optimiser/Cargo.toml b/badger-optimiser/Cargo.toml
index 034c66af8..824fedc57 100644
--- a/badger-optimiser/Cargo.toml
+++ b/badger-optimiser/Cargo.toml
@@ -16,7 +16,7 @@ tket = { path = "../tket", features = [
     "rewrite-tracing",
     "binary-eccs",
 ] }
-tket-qsystem = { path = "../tket-qsystem", version = "0.20.0" }
+tket-qsystem = { path = "../tket-qsystem", version = "0.21.0" }
 tracing = { workspace = true }
 tracing-subscriber = { workspace = true }
 tracing-appender = { workspace = true }
diff --git a/tket-py/Cargo.toml b/tket-py/Cargo.toml
index 7813cde47..1da8d9584 100644
--- a/tket-py/Cargo.toml
+++ b/tket-py/Cargo.toml
@@ -19,11 +19,11 @@ test = false
 bench = false
 
 [dependencies]
-tket = { path = "../tket", version = "0.14.0", features = [
+tket = { path = "../tket", version = "0.15.0", features = [
     "portmatching",
     "binary-eccs",
 ] }
-tket-qsystem = { path = "../tket-qsystem", version = "0.20.0" }
+tket-qsystem = { path = "../tket-qsystem", version = "0.21.0" }
 serde = { workspace = true, features = ["derive"] }
 serde_json = { workspace = true }
 tket-json-rs = { workspace = true, features = ["pyo3"] }
diff --git a/tket-qsystem/CHANGELOG.md b/tket-qsystem/CHANGELOG.md
index d44517678..29e15872c 100644
--- a/tket-qsystem/CHANGELOG.md
+++ b/tket-qsystem/CHANGELOG.md
@@ -1,6 +1,12 @@
 # Changelog
 
 
+## [0.21.0](https://github.com/CQCL/tket2/compare/tket-qsystem-v0.20.0...tket-qsystem-v0.21.0) - 2025-08-22
+
+### Bug Fixes
+
+- [**breaking**] Fix rotation -> float param type conversion ([#1061](https://github.com/CQCL/tket2/pull/1061))
+
 ## [0.20.0](https://github.com/CQCL/tket2/compare/tket-qsystem-v0.19.0...tket-qsystem-v0.20.0) - 2025-08-21
 
 ### New Features
diff --git a/tket-qsystem/Cargo.toml b/tket-qsystem/Cargo.toml
index 9bfcff872..3197a39fa 100644
--- a/tket-qsystem/Cargo.toml
+++ b/tket-qsystem/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "tket-qsystem"
-version = "0.20.0"
+version = "0.21.0"
 edition.workspace = true
 rust-version.workspace = true
 
@@ -24,7 +24,7 @@ required-features = ["cli"]
 
 [dependencies]
 hugr.workspace = true
-tket = { path = "../tket", version = "0.14.0" }
+tket = { path = "../tket", version = "0.15.0" }
 tket-json-rs = { workspace = true }
 lazy_static.workspace = true
 serde = { workspace = true, features = ["derive"] }
diff --git a/tket/CHANGELOG.md b/tket/CHANGELOG.md
index 3cac578a4..20934c6a5 100644
--- a/tket/CHANGELOG.md
+++ b/tket/CHANGELOG.md
@@ -1,6 +1,12 @@
 # Changelog
 
 
+## [0.15.0](https://github.com/CQCL/tket2/compare/tket-v0.14.0...tket-v0.15.0) - 2025-08-22
+
+### Bug Fixes
+
+- [**breaking**] Fix rotation -> float param type conversion ([#1061](https://github.com/CQCL/tket2/pull/1061))
+
 ## [0.14.0](https://github.com/CQCL/tket2/compare/tket-v0.13.2...tket-v0.14.0) - 2025-08-18
 
 ### New Features
diff --git a/tket/Cargo.toml b/tket/Cargo.toml
index b34ab7e0e..8137c777c 100644
--- a/tket/Cargo.toml
+++ b/tket/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "tket"
-version = "0.14.0"
+version = "0.15.0"
 edition = { workspace = true }
 rust-version = { workspace = true }