diff --git a/elynx-seq.cabal b/elynx-seq.cabal
--- a/elynx-seq.cabal
+++ b/elynx-seq.cabal
@@ -1,9 +1,9 @@
 cabal-version:      2.2
 name:               elynx-seq
-version:            0.5.1.0
+version:            0.5.1.1
 license:            GPL-3.0-or-later
 license-file:       LICENSE
-copyright:          Dominik Schrempf (2020)
+copyright:          Dominik Schrempf (2021)
 maintainer:         dominik.schrempf@gmail.com
 author:             Dominik Schrempf
 homepage:           https://github.com/dschrempf/elynx#readme
@@ -64,7 +64,7 @@
         bytestring >=0.10.12.0,
         containers >=0.6.2.1,
         matrices >=0.5.0,
-        mwc-random >=0.14.0.0,
+        mwc-random >=0.15.0.1,
         parallel >=3.2.2.0,
         primitive >=0.7.1.0,
         vector >=0.12.3.0,
@@ -90,7 +90,7 @@
         base >=4.7 && <5,
         bytestring >=0.10.12.0,
         elynx-seq -any,
-        elynx-tools >=0.5.1.0,
+        elynx-tools >=0.5.1.1,
         hspec >=2.7.10,
         matrices >=0.5.0,
         vector >=0.12.3.0
diff --git a/src/ELynx/Data/Alphabet/Alphabet.hs b/src/ELynx/Data/Alphabet/Alphabet.hs
--- a/src/ELynx/Data/Alphabet/Alphabet.hs
+++ b/src/ELynx/Data/Alphabet/Alphabet.hs
@@ -3,7 +3,7 @@
 -- |
 -- Module      :  ELynx.Data.Alphabet.Alphabet
 -- Description :  Alphabets store hereditary information
--- Copyright   :  (c) Dominik Schrempf 2020
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/src/ELynx/Data/Alphabet/Character.hs b/src/ELynx/Data/Alphabet/Character.hs
--- a/src/ELynx/Data/Alphabet/Character.hs
+++ b/src/ELynx/Data/Alphabet/Character.hs
@@ -5,7 +5,7 @@
 -- |
 -- Module      :  ELynx.Data.Alphabet.Character
 -- Description :  Alphabet characters
--- Copyright   :  (c) Dominik Schrempf 2020
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/src/ELynx/Data/Alphabet/DistributionDiversity.hs b/src/ELynx/Data/Alphabet/DistributionDiversity.hs
--- a/src/ELynx/Data/Alphabet/DistributionDiversity.hs
+++ b/src/ELynx/Data/Alphabet/DistributionDiversity.hs
@@ -3,7 +3,7 @@
 -- |
 -- Module      :  ELynx.Data.Alphabet.DistributionDiversity
 -- Description :  Summarize statistics for alphabets
--- Copyright   :  (c) Dominik Schrempf 2020
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/src/ELynx/Data/Character/AminoAcid.hs b/src/ELynx/Data/Character/AminoAcid.hs
--- a/src/ELynx/Data/Character/AminoAcid.hs
+++ b/src/ELynx/Data/Character/AminoAcid.hs
@@ -5,7 +5,7 @@
 -- |
 -- Module      :  ELynx.Data.AminoAcid
 -- Description :  Amino acid related types and functions
--- Copyright   :  (c) Dominik Schrempf 2018
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/src/ELynx/Data/Character/AminoAcidI.hs b/src/ELynx/Data/Character/AminoAcidI.hs
--- a/src/ELynx/Data/Character/AminoAcidI.hs
+++ b/src/ELynx/Data/Character/AminoAcidI.hs
@@ -5,7 +5,7 @@
 -- |
 -- Module      :  ELynx.Data.AminoAcid
 -- Description :  Amino acid related types and functions
--- Copyright   :  (c) Dominik Schrempf 2018
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/src/ELynx/Data/Character/AminoAcidS.hs b/src/ELynx/Data/Character/AminoAcidS.hs
--- a/src/ELynx/Data/Character/AminoAcidS.hs
+++ b/src/ELynx/Data/Character/AminoAcidS.hs
@@ -5,7 +5,7 @@
 -- |
 -- Module      :  ELynx.Data.AminoAcid
 -- Description :  Amino acid related types and functions
--- Copyright   :  (c) Dominik Schrempf 2018
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/src/ELynx/Data/Character/AminoAcidX.hs b/src/ELynx/Data/Character/AminoAcidX.hs
--- a/src/ELynx/Data/Character/AminoAcidX.hs
+++ b/src/ELynx/Data/Character/AminoAcidX.hs
@@ -5,7 +5,7 @@
 -- |
 -- Module      :  ELynx.Data.AminoAcid
 -- Description :  Amino acid related types and functions
--- Copyright   :  (c) Dominik Schrempf 2018
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/src/ELynx/Data/Character/Character.hs b/src/ELynx/Data/Character/Character.hs
--- a/src/ELynx/Data/Character/Character.hs
+++ b/src/ELynx/Data/Character/Character.hs
@@ -1,7 +1,7 @@
 -- |
 -- Module      :  Character
 -- Description :  Character interface
--- Copyright   :  (c) Dominik Schrempf 2018
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/src/ELynx/Data/Character/Codon.hs b/src/ELynx/Data/Character/Codon.hs
--- a/src/ELynx/Data/Character/Codon.hs
+++ b/src/ELynx/Data/Character/Codon.hs
@@ -3,7 +3,7 @@
 -- |
 -- Module      :  ELynx.Data.Character.Codon
 -- Description :  Codons are triplets of nucleotides
--- Copyright   :  (c) Dominik Schrempf 2020
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/src/ELynx/Data/Character/Nucleotide.hs b/src/ELynx/Data/Character/Nucleotide.hs
--- a/src/ELynx/Data/Character/Nucleotide.hs
+++ b/src/ELynx/Data/Character/Nucleotide.hs
@@ -5,7 +5,7 @@
 -- |
 -- Module      :  ELynx.Data.Nucleotide
 -- Description :  Nucleotides
--- Copyright   :  (c) Dominik Schrempf 2018
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/src/ELynx/Data/Character/NucleotideI.hs b/src/ELynx/Data/Character/NucleotideI.hs
--- a/src/ELynx/Data/Character/NucleotideI.hs
+++ b/src/ELynx/Data/Character/NucleotideI.hs
@@ -5,7 +5,7 @@
 -- |
 -- Module      :  ELynx.Data.NucleotideI
 -- Description :  Nucleotides with IUPAC characters
--- Copyright   :  (c) Dominik Schrempf 2018
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/src/ELynx/Data/Character/NucleotideX.hs b/src/ELynx/Data/Character/NucleotideX.hs
--- a/src/ELynx/Data/Character/NucleotideX.hs
+++ b/src/ELynx/Data/Character/NucleotideX.hs
@@ -5,7 +5,7 @@
 -- |
 -- Module      :  ELynx.Data.NucleotideX
 -- Description :  Extended nucleotides including gaps and unknowns
--- Copyright   :  (c) Dominik Schrempf 2018
+-- Copyright   :  (c) Dominik Schrempf 2021
 --
 -- License     :  GPL-3.0-or-later
 --
diff --git a/src/ELynx/Data/Sequence/Alignment.hs b/src/ELynx/Data/Sequence/Alignment.hs
--- a/src/ELynx/Data/Sequence/Alignment.hs
+++ b/src/ELynx/Data/Sequence/Alignment.hs
@@ -1,7 +1,7 @@
 -- |
 -- Module      :  ELynx.Data.Sequence.Alignment
 -- Description :  Multi sequence alignment related types and functions
--- Copyright   :  (c) Dominik Schrempf 2018
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/src/ELynx/Data/Sequence/Defaults.hs b/src/ELynx/Data/Sequence/Defaults.hs
--- a/src/ELynx/Data/Sequence/Defaults.hs
+++ b/src/ELynx/Data/Sequence/Defaults.hs
@@ -1,7 +1,7 @@
 -- |
 -- Module      :  ELynx.Defaults
 -- Description :  Various default values
--- Copyright   :  (c) Dominik Schrempf 2018
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/src/ELynx/Data/Sequence/Distance.hs b/src/ELynx/Data/Sequence/Distance.hs
--- a/src/ELynx/Data/Sequence/Distance.hs
+++ b/src/ELynx/Data/Sequence/Distance.hs
@@ -1,7 +1,7 @@
 -- |
 -- Module      :  ELynx.Data.Sequence.Distance
 -- Description :  Distance functions between sequences
--- Copyright   :  (c) Dominik Schrempf, 2020
+-- Copyright   :  (c) Dominik Schrempf, 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/src/ELynx/Data/Sequence/Sequence.hs b/src/ELynx/Data/Sequence/Sequence.hs
--- a/src/ELynx/Data/Sequence/Sequence.hs
+++ b/src/ELynx/Data/Sequence/Sequence.hs
@@ -3,7 +3,7 @@
 -- |
 -- Module      :  ELynx.Data.Sequence
 -- Description :  Hereditary sequences
--- Copyright   :  (c) Dominik Schrempf 2018
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/src/ELynx/Data/Sequence/Translate.hs b/src/ELynx/Data/Sequence/Translate.hs
--- a/src/ELynx/Data/Sequence/Translate.hs
+++ b/src/ELynx/Data/Sequence/Translate.hs
@@ -1,7 +1,7 @@
 -- |
 -- Module      :  ELynx.Data.Sequence.Translate
 -- Description :  Translate sequences
--- Copyright   :  (c) Dominik Schrempf 2020
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/src/ELynx/Export/Sequence/Fasta.hs b/src/ELynx/Export/Sequence/Fasta.hs
--- a/src/ELynx/Export/Sequence/Fasta.hs
+++ b/src/ELynx/Export/Sequence/Fasta.hs
@@ -1,7 +1,7 @@
 -- |
 -- Module      :  ELynx.Export.Sequence.Fasta
 -- Description :  Export Fasta sequences
--- Copyright   :  (c) Dominik Schrempf 2018
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 --
diff --git a/src/ELynx/Import/Sequence/Fasta.hs b/src/ELynx/Import/Sequence/Fasta.hs
--- a/src/ELynx/Import/Sequence/Fasta.hs
+++ b/src/ELynx/Import/Sequence/Fasta.hs
@@ -3,7 +3,7 @@
 -- |
 -- Module      :  ELynx.Import.Sequence.Fasta
 -- Description :  Import Fasta sequences
--- Copyright   :  (c) Dominik Schrempf 2018
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 --
diff --git a/test/ELynx/Data/Alphabet/DistributionDiversitySpec.hs b/test/ELynx/Data/Alphabet/DistributionDiversitySpec.hs
--- a/test/ELynx/Data/Alphabet/DistributionDiversitySpec.hs
+++ b/test/ELynx/Data/Alphabet/DistributionDiversitySpec.hs
@@ -1,6 +1,6 @@
 -- |
 -- Module      :  ELynx.Data.Alphabet.DistributionDiversitySpec
--- Copyright   :  (c) Dominik Schrempf 2020
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/test/ELynx/Data/Sequence/AlignmentSpec.hs b/test/ELynx/Data/Sequence/AlignmentSpec.hs
--- a/test/ELynx/Data/Sequence/AlignmentSpec.hs
+++ b/test/ELynx/Data/Sequence/AlignmentSpec.hs
@@ -1,6 +1,6 @@
 -- |
 -- Module      :  ELynx.Data.Sequence.AlignmentSpec
--- Copyright   :  (c) Dominik Schrempf 2018
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/test/ELynx/Data/Sequence/SequenceSpec.hs b/test/ELynx/Data/Sequence/SequenceSpec.hs
--- a/test/ELynx/Data/Sequence/SequenceSpec.hs
+++ b/test/ELynx/Data/Sequence/SequenceSpec.hs
@@ -1,6 +1,6 @@
 -- |
 -- Module      :  ELynx.Data.Sequence.SequenceSpec
--- Copyright   :  (c) Dominik Schrempf 2018
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/test/ELynx/Data/Sequence/TranslateSpec.hs b/test/ELynx/Data/Sequence/TranslateSpec.hs
--- a/test/ELynx/Data/Sequence/TranslateSpec.hs
+++ b/test/ELynx/Data/Sequence/TranslateSpec.hs
@@ -1,6 +1,6 @@
 -- |
 -- Module      :  ELynx.Data.Sequence.TranslateSpec
--- Copyright   :  (c) Dominik Schrempf 2018
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/test/ELynx/Export/Sequence/FastaSpec.hs b/test/ELynx/Export/Sequence/FastaSpec.hs
--- a/test/ELynx/Export/Sequence/FastaSpec.hs
+++ b/test/ELynx/Export/Sequence/FastaSpec.hs
@@ -1,6 +1,6 @@
 -- |
 -- Module      :  ELynx.Export.Sequence.FastaSpec
--- Copyright   :  (c) Dominik Schrempf 2020
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
diff --git a/test/ELynx/Import/Sequence/FastaSpec.hs b/test/ELynx/Import/Sequence/FastaSpec.hs
--- a/test/ELynx/Import/Sequence/FastaSpec.hs
+++ b/test/ELynx/Import/Sequence/FastaSpec.hs
@@ -1,6 +1,6 @@
 -- |
 -- Module      :  ELynx.Import.Sequence.FastaSpec
--- Copyright   :  (c) Dominik Schrempf 2020
+-- Copyright   :  (c) Dominik Schrempf 2021
 -- License     :  GPL-3.0-or-later
 --
 -- Maintainer  :  dominik.schrempf@gmail.com
