diff --git a/REQUIRE b/REQUIRE
index 94237c0..2652857 100644
--- a/REQUIRE
+++ b/REQUIRE
@@ -1 +1,2 @@
 julia 0.5
+Compat 0.17.0
diff --git a/src/Matching.jl b/src/Matching.jl
index 4ee4cfe..c7e2e0a 100644
--- a/src/Matching.jl
+++ b/src/Matching.jl
@@ -1,5 +1,7 @@
 module Matching
 
+using Compat
+
 include("util.jl")
 include("deferred_acceptance.jl")
 include("matching_tools.jl")
diff --git a/src/deferred_acceptance.jl b/src/deferred_acceptance.jl
index a885687..5e63946 100644
--- a/src/deferred_acceptance.jl
+++ b/src/deferred_acceptance.jl
@@ -87,7 +87,7 @@ function deferred_acceptance(prop_prefs::Matrix{Int},
     next_resps = ones(Int, num_props)
 
     # Props currently matched
-    current_props = Array(Int, num_resp_caps)
+    current_props = Array{Int}(num_resp_caps)
     fill!(current_props, resp_unmatched_idx)
 
     # Numbers of resps' occupied seats
@@ -96,9 +96,9 @@ function deferred_acceptance(prop_prefs::Matrix{Int},
     # Binary heaps
     bhs = [
         BinHeap(view(resp_ranks, :, r),
-        	    view(current_props, resp_indptr[r]:resp_indptr[r+1]-1),
-    	        false)
-    	for r in 1:num_resps
+                view(current_props, resp_indptr[r]:resp_indptr[r+1]-1),
+                false)
+        for r in 1:num_resps
     ]
 
     # Main loop
@@ -192,7 +192,7 @@ function deferred_acceptance(prop_prefs::Matrix{Int}, resp_prefs::Matrix{Int})
 end
 
 # Many-to-one
-abstract DAProposal
+@compat abstract type DAProposal end
 immutable SProposing <: DAProposal end
 immutable CProposing <: DAProposal end
 
@@ -260,7 +260,7 @@ end
 
 function _caps2indptr(caps::Vector{Int})
     n = length(caps)
-    indptr = Array(Int, n+1)
+    indptr = Array{Int}(n+1)
     indptr[1] = 1
     @inbounds for i in 1:n
         indptr[i+1] = indptr[i] + caps[i]
diff --git a/src/matching_tools.jl b/src/matching_tools.jl
index d17d26c..45a7bc9 100644
--- a/src/matching_tools.jl
+++ b/src/matching_tools.jl
@@ -122,7 +122,7 @@ function random_prefs(rng::AbstractRNG,
     c_prefs = _random_prefs(rng, n, m)
 
     if allow_unmatched
-        unmatched_rankings = Array(Int, n) #rand(r, 2:n+1, m)
+        unmatched_rankings = Array{Int}(n) #rand(r, 2:n+1, m)
         _random_unmatched!(rng, c_prefs, unmatched_rankings)
         caps = _random_caps(rng, unmatched_rankings)
     else
@@ -137,7 +137,7 @@ random_prefs(m::Integer, n::Integer, T::Type{ReturnCaps};
 
 
 function _random_prefs(rng::AbstractRNG, m::Integer, n::Integer)
-    prefs = Array(Int, n+1, m)
+    prefs = Array{Int}(n+1, m)
     for j in 1:m
         prefs[end, j] = 0
     end
@@ -163,7 +163,7 @@ function _random_prefs(rng::AbstractRNG, m::Integer, n::Integer,
     prefs = _random_prefs(rng, m, n)
 
     if allow_unmatched
-        unmatched_rankings = Array(Int, m)
+        unmatched_rankings = Array{Int}(m)
         _random_unmatched!(rng, prefs, unmatched_rankings)
     end