diff --git a/Project.toml b/Project.toml
index 1ab7dbc..f1d3579 100644
--- a/Project.toml
+++ b/Project.toml
@@ -9,7 +9,6 @@ ColorTypes = "3da002f7-5984-5a60-b8a6-cbb66c0b333f"
 CorpusLoaders = "214a0ac2-f95b-54f7-a80b-442ed9c2c9e8"
 Dates = "ade2ca70-3891-5945-98fb-dc099432e06a"
 Distributions = "31c24e10-a181-5473-b8eb-7969acd0382f"
-PersistenceDiagramsBase = "b1ad91c1-539c-4ace-90bd-ea06abc420fa"
 PrettyTables = "08abe8d2-0d0c-5749-adfa-8a2ac140af0d"
 Reexport = "189a3867-3050-52da-a836-e630ba90ab69"
 ScientificTypesBase = "30f210dd-8aff-4c5f-94ba-8e64358c1161"
@@ -20,7 +19,6 @@ Tables = "bd369af6-aec1-5ad0-b16a-f7cc5008161c"
 CategoricalArrays = "0.8, 0.9, 0.10"
 ColorTypes = "0.9, 0.10, 0.11"
 Distributions = "0.25.1"
-PersistenceDiagramsBase = "0.1"
 PrettyTables = "1"
 Reexport = "1.2"
 ScientificTypesBase = "2.2"
diff --git a/src/ScientificTypes.jl b/src/ScientificTypes.jl
index 052f0fe..9c0e730 100644
--- a/src/ScientificTypes.jl
+++ b/src/ScientificTypes.jl
@@ -6,7 +6,6 @@ using Reexport
 using Tables
 using CategoricalArrays
 using ColorTypes
-using PersistenceDiagramsBase
 using CorpusLoaders
 using PrettyTables
 using Dates
diff --git a/src/convention/scitype.jl b/src/convention/scitype.jl
index 76c698f..401ddc3 100644
--- a/src/convention/scitype.jl
+++ b/src/convention/scitype.jl
@@ -16,7 +16,7 @@ ColorImage{size(img)...}
 
 # Persistence diagrams
 
-ST.scitype(::PersistenceDiagram, ::DefaultConvention) = PersistenceDiagram
+# ST.scitype(::PersistenceDiagram, ::DefaultConvention) = PersistenceDiagram
 
 # CategoricalArray scitype
 
@@ -76,4 +76,4 @@ ST.Scitype(::Type{<:TimeType},           ::DefaultConvention) = ScientificTimeTy
 ST.Scitype(::Type{<:Date},               ::DefaultConvention) = ScientificDate
 ST.Scitype(::Type{<:Time},               ::DefaultConvention) = ScientificTime
 ST.Scitype(::Type{<:DateTime},           ::DefaultConvention) = ScientificDateTime
-ST.Scitype(::Type{<:PersistenceDiagram}, ::DefaultConvention) = PersistenceDiagram
+# ST.Scitype(::Type{<:PersistenceDiagram}, ::DefaultConvention) = PersistenceDiagram
diff --git a/test/basic_tests.jl b/test/basic_tests.jl
index 539b6c0..33b09d8 100644
--- a/test/basic_tests.jl
+++ b/test/basic_tests.jl
@@ -86,13 +86,13 @@ end
     @test scitype(gray_image) == GrayImage{10,20}
 end
 
-@testset "PersistenceDiagrams" begin
-    diagram = PersistenceDiagram([(1, Inf), (2, 3)], dim=0)
-    @test scitype(diagram) == PersistenceDiagram
+# @testset "PersistenceDiagrams" begin
+#     diagram = PersistenceDiagram([(1, Inf), (2, 3)], dim=0)
+#     @test scitype(diagram) == PersistenceDiagram
 
-    diagrams = [diagram, diagram, diagram]
-    @test scitype(diagrams) == Vec{PersistenceDiagram}
-end
+#     diagrams = [diagram, diagram, diagram]
+#     @test scitype(diagrams) == Vec{PersistenceDiagram}
+# end
 
 @testset "temporal types" begin
     d = Date(2020, 4, 21)
diff --git a/test/runtests.jl b/test/runtests.jl
index 9e89a2f..9be81f2 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -1,6 +1,6 @@
 using Test, ScientificTypes, ScientificTypesBase, Random
 using Tables, CategoricalArrays, DataFrames
-using ColorTypes, PersistenceDiagramsBase, CorpusLoaders
+using ColorTypes, CorpusLoaders
 using Dates
 # using CSV # dropped until julia release new LTS as issue for 1.0
 import Distributions