diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b4ae060a..6c02d82f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -45,9 +45,9 @@ jobs:
             ${{ runner.os }}-test-
             ${{ runner.os }}-
       - uses: julia-actions/julia-buildpkg@v1
-        continue-on-error: ${{ matrix.julia-version == 'nightly' }}
+        # continue-on-error: ${{ matrix.julia-version == 'nightly' }}
       - uses: julia-actions/julia-runtest@v1
-        continue-on-error: ${{ matrix.julia-version == 'nightly' }}
+        # continue-on-error: ${{ matrix.julia-version == 'nightly' }}
       - uses: julia-actions/julia-processcoverage@v1
       - uses: coverallsapp/github-action@master
         with:
diff --git a/Project.toml b/Project.toml
index 63c0c7f9..9e6937ad 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "TaylorSeries"
 uuid = "6aa5eb33-94cf-58f4-a9d0-e4b2c4fc25ea"
 repo = "https://github.com/JuliaDiff/TaylorSeries.jl.git"
-version = "0.11.4"
+version = "0.11.5"
 
 [deps]
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
diff --git a/test/mixtures.jl b/test/mixtures.jl
index bec3d77b..0c7e08fe 100644
--- a/test/mixtures.jl
+++ b/test/mixtures.jl
@@ -4,7 +4,7 @@
 using TaylorSeries
 
 using Test
-using LinearAlgebra, SparseArrays
+using LinearAlgebra
 
 @testset "Tests with mixtures of Taylor1 and TaylorN" begin
     @test TaylorSeries.NumberNotSeries == Union{Real,Complex}
diff --git a/test/onevariable.jl b/test/onevariable.jl
index b94180f6..7b52c3c5 100644
--- a/test/onevariable.jl
+++ b/test/onevariable.jl
@@ -613,6 +613,8 @@ end
     ainv = inv(a)
     b = Taylor1.(a, 5)
     binv = inv(b)
+    c = Symmetric(b)
+    cinv = inv(c)
     tol = 1.0e-11
 
     for its = 1:10
@@ -620,11 +622,19 @@ end
         ainv .= inv(a)
         b .= Taylor1.(a, 5)
         binv .= inv(b)
+        c .= Symmetric(Taylor1.(a, 5))
+        cinv .= inv(c)
         @test norm(binv - ainv, Inf) ≤ tol
         @test norm(b*binv - I, Inf) ≤ tol
         @test norm(binv*b - I, Inf) ≤ tol
         @test norm(triu(b)*inv(UpperTriangular(b)) - I, Inf) ≤ tol
         @test norm(inv(LowerTriangular(b))*tril(b) - I, Inf) ≤ tol
+        ainv .= inv(Symmetric(a))
+        @test norm(cinv - ainv, Inf) ≤ tol
+        @test norm(c*cinv - I, Inf) ≤ tol
+        @test norm(cinv*c - I, Inf) ≤ tol
+        @test norm(triu(c)*inv(UpperTriangular(c)) - I, Inf) ≤ tol
+        @test norm(inv(LowerTriangular(c))*tril(c) - I, Inf) ≤ tol
 
         b .= b .+ t
         binv .= inv(b)
@@ -632,6 +642,10 @@ end
         @test norm(binv*b - I, Inf) ≤ tol
         @test norm(triu(b)*inv(triu(b)) - I, Inf) ≤ tol
         @test norm(inv(tril(b))*tril(b) - I, Inf) ≤ tol
+        c .= Symmetric(b)
+        cinv .= inv(c)
+        @test norm(c*cinv - I, Inf) ≤ tol
+        @test norm(cinv*c - I, Inf) ≤ tol
     end
 end