diff --git a/REQUIRE b/REQUIRE
index aa0ba46..8e2ccd7 100644
--- a/REQUIRE
+++ b/REQUIRE
@@ -3,7 +3,6 @@ FEMBase 0.1 0.2-
 ForwardDiff
 LightXML 0.4
 HDF5 0.7
-DataFrames
 Formatting
 Logging
 TimerOutputs
diff --git a/src/postprocess_utils.jl b/src/postprocess_utils.jl
index ac909f8..971185c 100644
--- a/src/postprocess_utils.jl
+++ b/src/postprocess_utils.jl
@@ -2,7 +2,7 @@
 # License is MIT: see https://github.com/JuliaFEM/JuliaFEM.jl/blob/master/LICENSE.md
 
 using JuliaFEM
-using DataFrames
+#using DataFrames
 using HDF5
 using LightXML
 using Formatting
diff --git a/test/test_heat_4.jl b/test/test_heat_4.jl
index 5bc5c84..b0cf699 100644
--- a/test/test_heat_4.jl
+++ b/test/test_heat_4.jl
@@ -3,7 +3,6 @@
 
 using JuliaFEM
 using JuliaFEM.Testing
-using DataFrames
 
 @testset "two increments, linear solver" begin
     X = Dict{Int, Vector{Float64}}(