diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5d82e0f..5a64230 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@ code, while major version upgrades (e.g. 1.1 to 2.0) might.
 
 <!--next-version-placeholder-->
 
+## v3.3.0 (2022-01-31)
+### Feature
+* Allow `show(attrs=...)` to be a string ([`0572a61`](https://github.com/kalekundert/wellmap/commit/0572a610de3e1559e4029e0bb7c505e2a07d7ae9))
+
 ## v3.2.1 (2021-11-10)
 ### Fix
 * Correct color concave well groups ([`04015bf`](https://github.com/kalekundert/wellmap/commit/04015bf5d76377ccb53eabd5f0a0393137f267de))
diff --git a/wellmap/__init__.py b/wellmap/__init__.py
index 10c11f3..7776241 100644
--- a/wellmap/__init__.py
+++ b/wellmap/__init__.py
@@ -4,7 +4,7 @@
 File format for 96-well plate layouts.
 """
 
-__version__ = '3.2.1'
+__version__ = '3.3.0'
 
 from .util import *
 from .file import *
diff --git a/wellmapr/DESCRIPTION b/wellmapr/DESCRIPTION
index e488e7a..29b07ce 100644
--- a/wellmapr/DESCRIPTION
+++ b/wellmapr/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: wellmapr
 Title: File format for 96-well plate layouts
-Version: 3.2.1
+Version: 3.3.0
 Authors@R: as.person(c(
   "Kale Kundert <kale@thekunderts.net> [aut, cre]"
   ))
@@ -11,7 +11,7 @@ Depends:
 Config/reticulate:
   list(
     packages = list(
-      list(package = "wellmap", version = "3.2.1", pip = TRUE)
+      list(package = "wellmap", version = "3.3.0", pip = TRUE)
     )
   )
 Roxygen: list(markdown = TRUE)