diff --git a/Project.toml b/Project.toml
index df06155..021d767 100644
--- a/Project.toml
+++ b/Project.toml
@@ -6,7 +6,6 @@ version = "0.3.0"
 DataStructures = "864edb3b-99cc-5e75-8d2d-829cb0a9cfe8"
 Distributions = "31c24e10-a181-5473-b8eb-7969acd0382f"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
-ResumableFunctions = "c5292f4c-5179-55e1-98c5-05642aab7184"
 StatsBase = "2913bbd2-ae8a-5f71-8c99-4fb6c76f3a91"
 
 [compat]
@@ -14,5 +13,4 @@ julia = "1.8"
 DataStructures = "0.18"
 Distributions = "0.25"
 Random = "1"
-ResumableFunctions = "0.6"
 StatsBase = "0.32, 0.33, 0.34"
diff --git a/src/SortedSamplingMulti.jl b/src/SortedSamplingMulti.jl
index 76b6260..a0bb330 100644
--- a/src/SortedSamplingMulti.jl
+++ b/src/SortedSamplingMulti.jl
@@ -13,7 +13,7 @@ function sortedindices_sample(rng, iter, n::Int; replace = false, ordered = fals
             end
         end
     end
-    iter_type = Base.@default_eltype(iter)
+    iter_type = calculate_eltype(iter)
     reservoir = Vector{iter_type}(undef, n)
     indices = get_sorted_indices(rng, n, N, replace)
     first_idx = indices[1]
diff --git a/src/StreamSampling.jl b/src/StreamSampling.jl
index 710f7a5..68a0e89 100644
--- a/src/StreamSampling.jl
+++ b/src/StreamSampling.jl
@@ -3,7 +3,6 @@ module StreamSampling
 using DataStructures
 using Distributions
 using Random
-using ResumableFunctions
 using StatsBase
 
 struct WRSample end
diff --git a/src/UnweightedSamplingMulti.jl b/src/UnweightedSamplingMulti.jl
index 65dfced..697a89f 100644
--- a/src/UnweightedSamplingMulti.jl
+++ b/src/UnweightedSamplingMulti.jl
@@ -232,8 +232,6 @@ function update_all!(s, iter, ordered)
 end
 
 function calculate_eltype(iter)
-    return Base.@default_eltype(iter)
-end
-function calculate_eltype(iter::ResumableFunctions.FiniteStateMachineIterator)
-    return eltype(iter)
+    T = eltype(iter)
+    return T === Any ? Base.@default_eltype(iter) : T
 end