diff --git a/.travis.yml b/.travis.yml
index f41d046..1c9ddf2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,7 +4,8 @@ os:
   - linux
   - osx
 julia:
-  - 0.6
+  - 1.0
+  - 1.1
   - nightly
 notifications:
   email: false
diff --git a/Project.toml b/Project.toml
new file mode 100644
index 0000000..5305019
--- /dev/null
+++ b/Project.toml
@@ -0,0 +1,16 @@
+name = "Unwrap"
+uuid = "66ceed60-733c-11e9-33de-751f162d5676"
+authors = ["platawiec"]
+version = "0.1.0"
+
+[deps]
+Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
+
+[extras]
+Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
+
+[targets]
+test=["Test"]
+
+[compat]
+julia = "^1.0"
\ No newline at end of file
diff --git a/REQUIRE b/REQUIRE
deleted file mode 100644
index 137767a..0000000
--- a/REQUIRE
+++ /dev/null
@@ -1 +0,0 @@
-julia 0.6
diff --git a/src/interface.jl b/src/interface.jl
index 2e6a84a..d37653a 100644
--- a/src/interface.jl
+++ b/src/interface.jl
@@ -11,18 +11,18 @@ Unwraps the values in A modulo 2π, where A is a 1-, 2-, or 3- dimensional array
 - `seed::Int`: Unwrapping of 2D or 3D images uses a random initialization. This
     sets the seed of the RNG.
 """
-unwrap
+function unwrap end
 
 """
     unwrap!(A[, wrap_around, seed])
 
 In-place version of unwrap.
 """
-unwrap!
+function unwrap! end
 
-function unwrap{T, N}(A::AbstractArray{T, N},
+function unwrap(A::AbstractArray{T, N},
                 wrap_around::NTuple{N, Bool}=tuple(zeros(Bool, N)...),
-                seed::Int=-1)
+                seed::Int=-1) where {T,N}
     A_copy = copy(A)
     unwrap!(A_copy, wrap_around, seed)
     return A_copy
diff --git a/src/unwrap_common.jl b/src/unwrap_common.jl
index 880292f..f47778f 100644
--- a/src/unwrap_common.jl
+++ b/src/unwrap_common.jl
@@ -1,3 +1,5 @@
+using Random
+
 mutable struct Pixel{T}
     periods::Int
     val::T
@@ -5,7 +7,7 @@ mutable struct Pixel{T}
     groupsize::Int
     head::Pixel{T}
     last::Pixel{T}
-    next::Union{Void, Pixel{T}}
+    next::Union{Nothing, Pixel{T}}
     function Pixel{T}(periods, val, rel, gs) where T
         pixel = new(periods, val, rel, gs)
         pixel.head = pixel
@@ -38,7 +40,7 @@ function unwrap!(wrapped_image::AbstractArray{T, N},
                  seed::Int=-1) where {T, N}
 
     if seed != -1
-        srand(seed)
+        Random.seed!(seed)
     end
 
     pixel_image = init_pixels(wrapped_image)
@@ -162,7 +164,7 @@ function populate_edges!(edges, pixel_image::Array{T, N}, dim, connected) where
     idx_step[dim] += 1
     idx_step_cart  = CartesianIndex{N}(idx_step...)
     idx_size       = CartesianIndex{N}(size_img...)
-    for i in CartesianRange(idx_size)
+    for i in CartesianIndices((:).(Tuple(CartesianIndex{N}()),Tuple(idx_size)))
         push!(edges, Edge{N}(pixel_image, i, i+idx_step_cart))
     end
     if connected
@@ -172,7 +174,7 @@ function populate_edges!(edges, pixel_image::Array{T, N}, dim, connected) where
         edge_begin      = fill(1, N)
         edge_begin[dim] = size(pixel_image)[dim]
         edge_begin_cart = CartesianIndex{N}(edge_begin...)
-        for i in CartesianRange(edge_begin_cart, CartesianIndex(size(pixel_image)))
+        for i in CartesianIndices((:).(Tuple(edge_begin_cart), Tuple(CartesianIndex(size(pixel_image)))))
             push!(edges, Edge{N}(pixel_image, i, i+idx_step_cart))
         end
     end
@@ -181,11 +183,10 @@ end
 function calculate_reliability(pixel_image::AbstractArray{T, N}, wrap_around) where {T, N}
     # get the shifted pixel indices in CartesinanIndex form
     # This gets all the nearest neighbors (CartesionIndex{N}() = one(CartesianIndex{N}))
-    pixel_shifts = collect(CartesianRange(-CartesianIndex{N}(),
-                                           CartesianIndex{N}()))
+    pixel_shifts = collect(CartesianIndices(tuple(repeat([-1:1],N)...)))
     size_img = size(pixel_image)
     # inner loop
-    for i in CartesianRange((CartesianIndex{N}()+1), (CartesianIndex{N}(size_img)-1))
+    for i in CartesianIndices((:).(tuple(fill(2,length(size_img))...),size_img.-1))
         @inbounds pixel_image[i].reliability = calculate_pixel_reliability(pixel_image, i, pixel_shifts)
     end
 
@@ -204,14 +205,14 @@ function calculate_reliability(pixel_image::AbstractArray{T, N}, wrap_around) wh
             border_begin          = fill(2, N)
             border_begin[idx_dim] = size_img[idx_dim]
             border_begin          = CartesianIndex{N}(border_begin...)
-            border_end            = collect(size_img)-1
+            border_end            = collect(size_img).-1
             border_end[idx_dim]   = size_img[idx_dim]
             border_end = CartesianIndex{N}(border_end...)
-            for i in CartesianRange(border_begin, border_end)
+            for i in CartesianIndices((:).(Tuple(border_begin), Tuple(border_end)))
                 @inbounds pixel_image[i].reliability = calculate_pixel_reliability(pixel_image, i, pixel_shifts_border)
             end
             # second border
-            pixel_shifts_border = copy!(pixel_shifts_border, pixel_shifts)
+            pixel_shifts_border = copyto!(pixel_shifts_border, pixel_shifts)
             for (idx_ps, ps) in enumerate(pixel_shifts_border)
                 # if the pixel shift goes out of bounds, we make the shift wrap, this time to the other side
                 if ps[idx_dim] == -1
@@ -223,10 +224,10 @@ function calculate_reliability(pixel_image::AbstractArray{T, N}, wrap_around) wh
             border_begin          = fill(2, N)
             border_begin[idx_dim] = 1
             border_begin          = CartesianIndex{N}(border_begin...)
-            border_end            = collect(size_img)-1
+            border_end            = collect(size_img).-1
             border_end[idx_dim]   = 1
             border_end = CartesianIndex{N}(border_end...)
-            for i in CartesianRange(border_begin, border_end)
+            for i in CartesianIndices((:).(Tuple(border_begin), Tuple(border_end)))
                 @inbounds pixel_image[i].reliability = calculate_pixel_reliability(pixel_image, i, pixel_shifts_border)
             end
         end
diff --git a/test/runtests.jl b/test/runtests.jl
index b3a9efb..c81571b 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -1,5 +1,5 @@
 using Unwrap
-using Base.Test
+using Test
 
 @time @testset "Unwrap 1D" begin include("test_unwrap_1D.jl") end
 @time @testset "Unwrap 2D" begin include("test_unwrap_2D.jl") end
diff --git a/test/test_unwrap_1D.jl b/test/test_unwrap_1D.jl
index bd1c24e..5075557 100644
--- a/test/test_unwrap_1D.jl
+++ b/test/test_unwrap_1D.jl
@@ -1,4 +1,4 @@
-A_unwrapped = collect(linspace(0, 10π, 100))
+A_unwrapped = collect(range(0, stop=10π, length=100))
 A_wrapped = A_unwrapped .% (2π)
 
 @test unwrap(A_wrapped) == A_unwrapped
@@ -7,10 +7,10 @@ A_wrapped = A_unwrapped .% (2π)
 unwrap!(A_wrapped)
 @test A_wrapped == A_unwrapped
 
-A_bf_uw = collect(linspace(0, 10*BigFloat(π), 100))
+A_bf_uw = collect(range(0, stop=10*BigFloat(π), length=100))
 A_bf_w = A_bf_uw .% (2*BigFloat(π))
 @test unwrap(A_bf_w) ≈ A_bf_uw
 
-A_f32_uw = collect(linspace(0, 10*Float32(π), 100))
+A_f32_uw = collect(range(0, stop=10*Float32(π), length=100))
 A_f32_w = A_bf_uw .% (2*Float32(π))
 @test unwrap(A_bf_w) ≈ A_bf_uw
diff --git a/test/test_unwrap_2D.jl b/test/test_unwrap_2D.jl
index 2cfd0f0..bfe8823 100644
--- a/test/test_unwrap_2D.jl
+++ b/test/test_unwrap_2D.jl
@@ -1,37 +1,37 @@
-vec_unwrapped = linspace(0, 5π, 20)
+vec_unwrapped = range(0, stop=5π, length=20)
 mat_unwrapped = vec_unwrapped .+ vec_unwrapped'
 mat_wrapped = mat_unwrapped .% (2π)
 uw_test = unwrap(mat_wrapped)
 difference = mat_unwrapped[1,1] - uw_test[1,1]
-@test (uw_test + difference) ≈ mat_unwrapped
+@test (uw_test .+ difference) ≈ mat_unwrapped
 # test in-place version
 unwrap!(mat_wrapped)
 difference = mat_unwrapped[1,1] - mat_wrapped[1,1]
-@test (mat_wrapped + difference) ≈ mat_unwrapped
+@test (mat_wrapped .+ difference) ≈ mat_unwrapped
 
 # Test BigFloat
-vec_bf = linspace(0, 5*BigFloat(π), 20)
+vec_bf = range(0, stop=5*BigFloat(π), length=20)
 mat_bf_uw = vec_bf .+ vec_bf'
 mat_bf_w = mat_bf_uw .% (2*BigFloat(π))
 uw_bf_test = unwrap(mat_bf_w)
 difference = mat_bf_uw[1,1] - uw_bf_test[1,1]
 @test eltype(uw_bf_test) == BigFloat
-@test (uw_bf_test + difference) ≈ mat_bf_uw
+@test (uw_bf_test .+ difference) ≈ mat_bf_uw
 
 # Test Float32
-vec_f32 = linspace(0, 5*Float32(π), 20)
+vec_f32 = range(0, stop=5*Float32(π), length=20)
 mat_f32_uw = vec_f32 .+ vec_f32'
 mat_f32_w = mat_f32_uw .% (2*Float32(π))
 uw_f32_test = unwrap(mat_f32_w)
 difference = mat_f32_uw[1,1] - uw_f32_test[1,1]
 @test eltype(uw_f32_test) == Float32
-@test (uw_f32_test + difference) ≈ mat_f32_uw
+@test (uw_f32_test .+ difference) ≈ mat_f32_uw
 
 # Test wrap_around
 # after unwrapping, pixels at borders should be equal to corresponding pixels
 # on other side
 wrap_around = (true, true)
-wa_vec = linspace(0, 5π, 20)
+wa_vec = range(0, stop=5π, length=20)
 wa_uw = wa_vec .+ zeros(20)'
 # make periodic
 wa_uw[end, :] = wa_uw[1, :]
diff --git a/test/test_unwrap_3D.jl b/test/test_unwrap_3D.jl
index fdc144c..129fe95 100644
--- a/test/test_unwrap_3D.jl
+++ b/test/test_unwrap_3D.jl
@@ -3,34 +3,34 @@ f(x, y, z) = 0.5x^2 - 0.1y^3 + z
 f_wraparound2(x, y, z) = 5*sin(x) + 2*cos(y) + z
 f_wraparound3(x, y, z) = 5*sin(x) + 2*cos(y) - 3*cos(z)
 for T in Types
-    grid = linspace(zero(T), 2π*one(T), 40)
+    grid = range(zero(T), stop=2π*one(T), length=40)
     f_uw = f.(grid, grid', reshape(grid, 1, 1, :))
     f_wr = f_uw .% (2π)
     uw_test = unwrap(f_wr)
     difference = first(f_uw) - first(uw_test)
-    @test isapprox(uw_test + difference, f_uw, atol=1e-8)
+    @test isapprox(uw_test .+ difference, f_uw, atol=1e-8)
     # test in-place version
     unwrap!(f_wr)
     difference = first(f_uw) - first(f_wr)
-    @test isapprox(f_wr + difference, f_uw, atol=1e-8)
+    @test isapprox(f_wr .+ difference, f_uw, atol=1e-8)
 
     f_uw = f_wraparound2.(grid, grid', reshape(grid, 1, 1, :))
     f_wr = f_uw .% (2π)
     uw_test = unwrap(f_wr, (true, true, false))
     difference = first(f_uw) - first(uw_test)
-    @test isapprox(uw_test + difference, f_uw, atol=1e-8)
+    @test isapprox(uw_test .+ difference, f_uw, atol=1e-8)
     # test in-place version
     unwrap!(f_wr, (true, true, false))
     difference = first(f_uw) - first(f_wr)
-    @test isapprox(f_wr + difference, f_uw, atol=1e-8)
+    @test isapprox(f_wr .+ difference, f_uw, atol=1e-8)
 
     f_uw = f_wraparound3.(grid, grid', reshape(grid, 1, 1, :))
     f_wr = f_uw .% (2π)
     uw_test = unwrap(f_wr, (true, true, true))
     difference = first(f_uw) - first(uw_test)
-    @test isapprox(uw_test + difference, f_uw, atol=1e-8)
+    @test isapprox(uw_test .+ difference, f_uw, atol=1e-8)
     # test in-place version
     unwrap!(f_wr, (true, true, true))
     difference = first(f_uw) - first(f_wr)
-    @test isapprox(f_wr + difference, f_uw, atol=1e-8)
+    @test isapprox(f_wr .+ difference, f_uw, atol=1e-8)
 end