diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 710a87d..0837e9a 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -15,7 +15,7 @@ jobs:
       matrix:
         version:
           - '1.6'
-          - '1.10'
+          - '1.9'
           # - 'nightly'
         os:
           - ubuntu-latest
diff --git a/docs/make.jl b/docs/make.jl
index 0ee7813..0783e5b 100644
--- a/docs/make.jl
+++ b/docs/make.jl
@@ -1,16 +1,16 @@
-using cosmic
+using Cosmic
 using Documenter
 
-DocMeta.setdocmeta!(cosmic, :DocTestSetup, :(using cosmic); recursive=true)
+DocMeta.setdocmeta!(Cosmic, :DocTestSetup, :(using Cosmic); recursive=true)
 
 makedocs(;
     modules=[cosmic],
     authors="Kazi Abu Rousan",
-    repo="https://github.com/aburousan/cosmic.jl/blob/{commit}{path}#{line}",
-    sitename="cosmic.jl",
+    repo="https://github.com/aburousan/Cosmic.jl/blob/{commit}{path}#{line}",
+    sitename="Cosmic.jl",
     format=Documenter.HTML(;
         prettyurls=get(ENV, "CI", "false") == "true",
-        canonical="https://aburousan.github.io/cosmic.jl",
+        canonical="https://aburousan.github.io/Cosmic.jl",
         edit_link="main",
         assets=String[],
     ),
@@ -20,6 +20,6 @@ makedocs(;
 )
 
 deploydocs(;
-    repo="github.com/aburousan/cosmic.jl",
+    repo="github.com/aburousan/Cosmic.jl",
     devbranch="main",
 )
diff --git a/docs/src/index.md b/docs/src/index.md
index ffd253c..cd884ab 100644
--- a/docs/src/index.md
+++ b/docs/src/index.md
@@ -1,5 +1,5 @@
 ```@meta
-CurrentModule = cosmic
+CurrentModule = Cosmic
 ```
 
 # cosmic
diff --git a/src/basic_cos.jl b/src/basic_cos.jl
index f4b8812..7622003 100644
--- a/src/basic_cos.jl
+++ b/src/basic_cos.jl
@@ -159,7 +159,7 @@ function scalefact_part(c::AbstractFlatCosmology,t)
     elseif t > 2e5/1e9 && t <= 1.5e9/1e9
         return (3/2)^(2/3)*(H0*t)^(2/3)*(c.Ω_m)^(1/3)
     else
-        return (1/c.Ω_Λ - 1)^(1/3)*(sinh(3*H0*t√(c.Ω_Λ)/2))^(2/3)
+        return cbrt(1/c.Ω_Λ - 1)*(sinh(3/2*H0*t*sqrt(c.Ω_Λ)))^(2/3)
     end
 
 end