diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4099607d..22396269 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,13 +2,15 @@
 
 ## next version
 
+## v0.9.0 March 22, 2025
+
 ### Added
 
   - tests for explicit imports and undocumented names
   - Runic.jl code formatting
   - new operators `symgrad_Voigt` and `εV` for symmetric gradients in Voigt notation
   - new periodic boundary matrix assembler `get_periodic_coupling_matrix`
-  - new `CombineDofs` operator accepting a periodic`coupling_matrix`
+  - new `CombineDofs` operator accepting a periodic `coupling_matrix`
 
 ## v0.8 November 1, 2024
   - started changelog
diff --git a/Project.toml b/Project.toml
index 0f4ac516..260e0165 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "ExtendableFEM"
 uuid = "a722555e-65e0-4074-a036-ca7ce79a4aed"
-authors = ["Christian Merdon <merdon@wias-berlin.de>"]
-version = "0.8.1"
+authors = ["Christian Merdon <merdon@wias-berlin.de>", "Patrick Jaap <patrick.jaap@wias-berlin.de>"]
+version = "0.9.0"
 
 [deps]
 CommonSolve = "38540f10-b2f7-11e9-35d8-d573e4eb0ff2"