diff --git a/Project.toml b/Project.toml
index 8a9441f..593c01b 100644
--- a/Project.toml
+++ b/Project.toml
@@ -6,9 +6,11 @@ version = "0.3.0"
 [deps]
 AbstractAlgebra = "c3fe647b-3220-5bb0-a1ea-a7954cac585d"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
-Markdown = "d6f4376e-aef5-505a-96c1-9c027394607a"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 
+[compat]
+AbstractAlgebra = "^0.9.0"
+
 [extras]
 Groups = "5d8bd718-bd84-11e8-3b40-ad14f4a32557"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
diff --git a/src/GroupRings.jl b/src/GroupRings.jl
index 1908de2..1d77d79 100644
--- a/src/GroupRings.jl
+++ b/src/GroupRings.jl
@@ -4,8 +4,7 @@ using AbstractAlgebra
 import AbstractAlgebra: Group, NCRing, NCRingElem, parent, elem_type, parent_type, addeq!, mul!
 
 using SparseArrays
-using LinearAlgebra
-using Markdown
+import LinearAlgebra
 
 import Base: convert, show, hash, ==, +, -, *, ^, //, /, length, getindex, setindex!, eltype, one, zero
 
@@ -72,7 +71,7 @@ function GroupRingElem(c::AbstractVector, RG::GroupRing)
    return GroupRingElem{eltype(c), typeof(c), typeof(RG)}(c, RG)
 end
 
-function GroupRing(G::Generic.PermGroup; cachedmul::Bool=false)
+function GroupRing(G::Generic.SymmetricGroup; cachedmul::Bool=false)
    return GroupRing(G, vec(collect(G)), cachedmul=cachedmul)
 end
 
@@ -342,7 +341,7 @@ function -(X::GroupRingElem{S}, Y::GroupRingElem{T}) where {S, T}
    addeq!((-Y), X)
 end
 
-@doc doc"""
+"""
     fmac!(result::AbstractVector{T},
               X::AbstractVector,
               Y::AbstractVector,
@@ -377,7 +376,7 @@ function fmac!(result::AbstractVector{T},
    return result
 end
 
-@doc doc"""
+"""
     GRmul!(result::AbstractVector{T}, X::AbstractVector, Y::AbstractVector,
            pm::Matrix{<:Integer}) where T
 > The most specialised multiplication for `X` and `Y` (intended for `coeffs` of
@@ -399,7 +398,7 @@ function GRmul!(result::AbstractVector{T},
    return fmac!(result, X, Y, pm)
 end
 
-@doc doc"""
+"""
     mul!(result::GroupRingElem, X::GroupRingElem, Y::GroupRingElem)
 > In-place multiplication for `GroupRingElem`s `X` and `Y`.
 > `mul!` will make use the initialised entries of `pm` attribute of
diff --git a/test/runtests.jl b/test/runtests.jl
index 4a50e1e..0b0065b 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -6,8 +6,8 @@ using SparseArrays
 
 
 @testset "GroupRings" begin
-   @testset "Constructors: PermutationGroup" begin
-      G = PermutationGroup(3)
+   @testset "Constructors: SymmetricGroup" begin
+      G = SymmetricGroup(3)
 
       @test isa(GroupRing(G), AbstractAlgebra.NCRing)
       @test isa(GroupRing(G), GroupRing)
@@ -18,7 +18,7 @@ using SparseArrays
       @test isdefined(RG, :basis_dict) == true
       @test isdefined(RG, :pm) == false
 
-      @test isa(GroupRing(PermutationGroup(6), rand(1:6, 6,6)), GroupRing)
+      @test isa(GroupRing(SymmetricGroup(6), rand(1:6, 6,6)), GroupRing)
 
       RG = GroupRing(G, cachedmul=true)
       @test isdefined(RG, :pm) == true
@@ -76,7 +76,7 @@ using SparseArrays
    end
 
    @testset "GroupRingElems constructors/basic manipulation" begin
-      G = PermutationGroup(3)
+      G = SymmetricGroup(3)
       RG = GroupRing(G, cachedmul=true)
       a = rand(6)
       @test isa(GroupRingElem(a, RG), GroupRingElem)
@@ -129,7 +129,7 @@ using SparseArrays
    end
 
    @testset "Arithmetic" begin
-      G = PermutationGroup(3)
+      G = SymmetricGroup(3)
       RG = GroupRing(G, cachedmul=true)
       a = RG(ones(Int, order(G)))
 
@@ -224,7 +224,7 @@ using SparseArrays
 
       @testset "HPC multiplicative operations" begin
 
-         G = PermutationGroup(5)
+         G = SymmetricGroup(5)
          RG = GroupRing(G, cachedmul=true)
          RG2 = GroupRing(G, cachedmul=false)