diff --git a/B.wav b/B.wav
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diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -120,3 +120,8 @@
 
 * Sixth version revised E. Changed sound representations for the Ukrainian "и" -- file "K.wav", "к" -- file "M.wav", "т" -- file "V.wav", "ч" -- file "b.wav", 
 "і" -- file "e.wav".
+
+## 0.6.5.0 -- 2020-05-12
+
+* Sixth version revised F. Changed sound representations for the Ukrainian "б" -- file "B.wav", "д" -- file "E.wav", "дж" -- file "F.wav", 
+"ж" -- file "I.wav", "п" -- file "R.wav", "р" -- file "S.wav". Changed durations accordingly in the Map.txt file.
diff --git a/E.wav b/E.wav
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diff --git a/F.wav b/F.wav
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diff --git a/I.wav b/I.wav
Binary files a/I.wav and b/I.wav differ
diff --git a/Map.txt b/Map.txt
--- a/Map.txt
+++ b/Map.txt
@@ -5,23 +5,23 @@
 "0"            ->    "0.wav"            ->       0.051020
 "1"            ->    "1.wav"            ->       0.153016
 "а"            ->    "A.wav"            ->       0.138231
-"б"            ->    "B.wav"            ->       0.057098
+"б"            ->    "B.wav"            ->       0.057143
 "в"            ->    "C.wav"            ->       0.082268
 "г"            ->    "D.wav"            ->       0.076825
 "д"            ->    "E.wav"            ->       0.072063
 "дж"           ->    "F.wav"            ->       0.048934
 "дз"           ->    "G.wav"            ->       0.055601
 "е"            ->    "H.wav"            ->       0.093605
-"ж"            ->    "I.wav"            ->       0.070612
+"ж"            ->    "I.wav"            ->       0.070658
 "з"            ->    "J.wav"            ->       0.056054
 "и"            ->    "K.wav"            ->       0.099955
 "й"            ->    "L.wav"            ->       0.057143
-"к"            ->    "M.wav"            ->       0.045397
+"к"            ->    "M.wav"            ->       0.045351
 "л"            ->    "N.wav"            ->       0.064036
 "м"            ->    "O.wav"            ->       0.077370
 "н"            ->    "P.wav"            ->       0.074240
 "о"            ->    "Q.wav"            ->       0.116463
-"п"            ->    "R.wav"            ->       0.071837
+"п"            ->    "R.wav"            ->       0.134830
 "р"            ->    "S.wav"            ->       0.049206
 "с"            ->    "T.wav"            ->       0.074603
 "сь"           ->    "U.wav"            ->       0.074558
@@ -31,7 +31,7 @@
 "х"            ->    "Y.wav"            ->       0.077188
 "ц"            ->    "Z.wav"            ->       0.053061
 "ць"           ->    "a.wav"            ->       0.089342
-"ч"            ->    "b.wav"            ->       0.057551
+"ч"            ->    "b.wav"            ->       0.057596
 "ш"            ->    "c.wav"            ->       0.066077
 "ь"            ->    "d.wav"            ->       0.020227
 "і"            ->    "e.wav"            ->       0.094150
diff --git a/R.wav b/R.wav
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diff --git a/S.wav b/S.wav
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diff --git a/mmsyn6ukr.cabal b/mmsyn6ukr.cabal
--- a/mmsyn6ukr.cabal
+++ b/mmsyn6ukr.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                mmsyn6ukr
-version:             0.6.4.0
+version:             0.6.5.0
 synopsis:            A musical instrument synthesizer or a tool for Ukrainian language listening
 description:         A program can be used as a musical instrument synthesizer or for Ukrainian speech synthesis especially for poets and writers
 homepage:            https://hackage.haskell.org/package/mmsyn6ukr