diff --git a/NEWS.md b/NEWS.md
index aa43ff15..e3e30295 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -4,6 +4,12 @@ Thermodynamics.jl Release Notes
 main
 ----
 
+v0.12.9
+-------
+- ![][[badge-🐛bugfix]] Protest against zero division in relative humidity 
+  calculation and limit relative humidity between 0 and 1.
+  PR [230](https://github.com/CliMA/Thermodynamics.jl/pull/230)
+
 v0.12.8
 -------
 - ![][badge-🤖precisionΔ] Change the tolerance of PhaseEquil constructor to 1e-4
diff --git a/Project.toml b/Project.toml
index ce653ca9..e5b9d0b6 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "Thermodynamics"
 uuid = "b60c26fb-14c3-4610-9d3e-2d17fe7ff00c"
 authors = ["Climate Modeling Alliance"]
-version = "0.12.8"
+version = "0.12.9"
 
 [deps]
 DocStringExtensions = "ffbed154-4ef7-542d-bbb7-c09d3a79fcae"