diff --git a/Cargo.lock b/Cargo.lock
index ca30eaa5..c9a6688e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1339,7 +1339,7 @@ checksum = "0ceec5bc11778974d1bcb055b18002eba7f4b3518b6a0081b3af5f21666da9ad"
 
 [[package]]
 name = "marrow"
-version = "0.3.0-rc.1"
+version = "0.3.0"
 dependencies = [
  "arrow-array 53.4.0",
  "arrow-array 54.3.1",
@@ -1829,7 +1829,7 @@ dependencies = [
 
 [[package]]
 name = "serde_arrow"
-version = "0.15.0-rc.2"
+version = "0.15.0"
 dependencies = [
  "anyhow",
  "arrow-array 53.4.0",
diff --git a/Changes.md b/Changes.md
index 92f490d2..106b36f2 100644
--- a/Changes.md
+++ b/Changes.md
@@ -1,21 +1,12 @@
 # Change log
 
-## Development
-
-## 0.15.0-rc.2
+## 0.15.0
 
 - Accept zero-offset timezone designators (`+00:00`, `-00:00`, `+0000`, `-0000`,
   `Z`, `z`) as UTC timezone metadata for timestamp fields
 - Infer strings with zero-offset timezone designators as UTC timestamps when
   date guessing is enabled
 
-### Thanks
-
-- [@ryzhyk](https://github.com/ryzhyk) added support for zero-offset timezone
-  designators ([#320](https://github.com/chmp/serde_arrow/pull/320))
-
-## 0.15.0-rc.1
-
 Breaking changes:
 
 - Stricter f32 / f64 to decimal conversions. Only finite floats that are in the
@@ -24,7 +15,7 @@ Breaking changes:
 - Bumped the MSRV to Rust 1.83.
 - Drop `arrow<53` support.
 - Drop `arrow2` support.
-- Updated the `marrow` dependency to `0.3.0-rc.1`.
+- Updated the `marrow` dependency to `0.3.0`.
 
 Bug fixes:
 
@@ -34,6 +25,11 @@ Bug fixes:
   of Arrow view arrays to avoid Rust APIs that may panic in favor of error
   producing APIs.
 
+### Thanks
+
+- [@ryzhyk](https://github.com/ryzhyk) added support for zero-offset timezone
+  designators ([#320](https://github.com/chmp/serde_arrow/pull/320))
+
 ## 0.14.2
 
 - Add `arrow=59` support
diff --git a/marrow/Cargo.toml b/marrow/Cargo.toml
index 7eac6eaf..5d6ee1af 100644
--- a/marrow/Cargo.toml
+++ b/marrow/Cargo.toml
@@ -2,7 +2,7 @@
 edition = "2021"
 
 name = "marrow"
-version = "0.3.0-rc.1"
+version = "0.3.0"
 authors = ["Christopher Prohm <mail@cprohm.de>"]
 description  = "Minimalist Arrow interop"
 readme = "Readme.md"
diff --git a/marrow/Changes.md b/marrow/Changes.md
index 4080d91c..ad771ebd 100644
--- a/marrow/Changes.md
+++ b/marrow/Changes.md
@@ -1,6 +1,6 @@
 # Change log
 
-## 0.3.0-rc.1
+## 0.3.0
 
 Breaking changes:
 
diff --git a/serde_arrow/Cargo.toml b/serde_arrow/Cargo.toml
index 0b7dba92..757b3983 100644
--- a/serde_arrow/Cargo.toml
+++ b/serde_arrow/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "serde_arrow"
-version = "0.15.0-rc.2"
+version = "0.15.0"
 authors = ["Christopher Prohm <mail@cprohm.de>"]
 edition = "2021"
 description  = "Convert sequences of Rust objects to Arrow arrays and back again"
@@ -29,7 +29,7 @@ arrow-54 = ["dep:arrow-array-54", "dep:arrow-schema-54", "marrow/arrow-54"]
 arrow-53 = ["dep:arrow-array-53", "dep:arrow-schema-53", "marrow/arrow-53"]
 
 [dependencies]
-marrow = { path = "../marrow", version = "0.3.0-rc.1", default-features = false, features = ["serde"] }
+marrow = { path = "../marrow", version = "0.3.0", default-features = false, features = ["serde"] }
 
 bytemuck = { version = "1", default-features = false }
 # TODO: make optional, only required for str -> date conversions