diff --git a/Project.toml b/Project.toml
index 37c8cc0d..2a797f98 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "ClimaParams"
 uuid = "5c42b081-d73a-476f-9059-fd94b934656c"
 authors = ["Climate Modeling Alliance"]
-version = "0.10.7"
+version = "0.10.8"
 
 [deps]
 DocStringExtensions = "ffbed154-4ef7-542d-bbb7-c09d3a79fcae"
diff --git a/src/parameters.toml b/src/parameters.toml
index 35c33859..9c121037 100644
--- a/src/parameters.toml
+++ b/src/parameters.toml
@@ -2204,6 +2204,16 @@ value = 1.34
 type = "float"
 description = "The relative refractive index of water and air for broadband ocean surface albedo calculation. See Jin et al. (2011) [https://opg.optica.org/oe/fulltext.cfm?uri=oe-19-27-26429&id=225797]"
 
+[optics_lookup_temperature_min]
+value = 160
+type = "float"
+description = "Miminum temperature in the lookup table for optical properties in RRTMGP"
+
+[optics_lookup_temperature_max]
+value = 355
+type = "float"
+description = "Maximum temperature in the lookup table for optical properties in RRTMGP"
+
 # EDMF
 
 [entr_inv_tau]