diff --git a/src/dumpling/Chips/Rosetta.py b/src/dumpling/Chips/Rosetta.py
index 5d8ab73..322bb51 100644
--- a/src/dumpling/Chips/Rosetta.py
+++ b/src/dumpling/Chips/Rosetta.py
@@ -21,7 +21,10 @@
 import click
 from dumpling.Common.ElfParser import ElfParser
 from bitstring import BitArray
-bitstring.lsb0 = True #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
+if (int(bitstring.__version__[0]) < 4):
+    bitstring.set_lsb0(True) #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
+else:
+    bitstring.lsb0 = True #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
 from dumpling.Common.HP93000 import HP93000VectorWriter
 from dumpling.JTAGTaps.PulpJTAGTapRosetta import PULPJTagTapRosetta
 from dumpling.Common.VectorBuilder import VectorBuilder
diff --git a/src/dumpling/Chips/Siracusa.py b/src/dumpling/Chips/Siracusa.py
index b02ffb2..cf5485c 100644
--- a/src/dumpling/Chips/Siracusa.py
+++ b/src/dumpling/Chips/Siracusa.py
@@ -22,7 +22,10 @@
 import click
 from dumpling.Common.ElfParser import ElfParser
 from bitstring import BitArray
-bitstring.lsb0 = True #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
+if (int(bitstring.__version__[0]) < 4):
+    bitstring.set_lsb0(True) #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
+else:
+    bitstring.lsb0 = True #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
 from dumpling.Common.HP93000 import HP93000VectorWriter
 from dumpling.JTAGTaps.PulpJTAGTap import PULPJtagTap
 from dumpling.Common.VectorBuilder import VectorBuilder
diff --git a/src/dumpling/Chips/Vega.py b/src/dumpling/Chips/Vega.py
index da7183f..c7a6ce3 100644
--- a/src/dumpling/Chips/Vega.py
+++ b/src/dumpling/Chips/Vega.py
@@ -21,7 +21,10 @@
 import click
 from dumpling.Common.ElfParser import ElfParser
 from bitstring import BitArray
-bitstring.lsb0 = True #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
+if (int(bitstring.__version__[0]) < 4):
+    bitstring.set_lsb0(True) #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
+else:
+    bitstring.lsb0 = True #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
 from dumpling.Common.HP93000 import HP93000VectorWriter
 from dumpling.JTAGTaps.PulpJTAGTapVega import PULPJtagTapVega
 from dumpling.Common.VectorBuilder import VectorBuilder
diff --git a/src/dumpling/Drivers/JTAG.py b/src/dumpling/Drivers/JTAG.py
index 3454b67..57316dd 100644
--- a/src/dumpling/Drivers/JTAG.py
+++ b/src/dumpling/Drivers/JTAG.py
@@ -18,7 +18,10 @@
 
 from dumpling.JTAGTaps.JTAGTap import JTAGTap, JTAGRegister
 
-bitstring.lsb0 = True #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
+if (int(bitstring.__version__[0]) < 4):
+    bitstring.set_lsb0(True) #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
+else:
+    bitstring.lsb0 = True #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
 from dumpling.Common.VectorBuilder import VectorBuilder
 
 class JTAGDriver:
diff --git a/src/dumpling/JTAGTaps/PulpJTAGTap.py b/src/dumpling/JTAGTaps/PulpJTAGTap.py
index 53c22fc..2ea6dcd 100644
--- a/src/dumpling/JTAGTaps/PulpJTAGTap.py
+++ b/src/dumpling/JTAGTaps/PulpJTAGTap.py
@@ -21,7 +21,10 @@
 from dumpling.Common.VectorBuilder import VectorBuilder
 from dumpling.Drivers.JTAG import JTAGTap, JTAGDriver, JTAGRegister
 from bitstring import BitArray
-bitstring.lsb0 = True #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
+if (int(bitstring.__version__[0]) < 4):
+    bitstring.set_lsb0(True) #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
+else:
+    bitstring.lsb0 = True #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
 
 
 class PULPJtagTap(JTAGTap):
diff --git a/src/dumpling/JTAGTaps/PulpJTAGTapRosetta.py b/src/dumpling/JTAGTaps/PulpJTAGTapRosetta.py
index f841771..055f21b 100644
--- a/src/dumpling/JTAGTaps/PulpJTAGTapRosetta.py
+++ b/src/dumpling/JTAGTaps/PulpJTAGTapRosetta.py
@@ -17,7 +17,10 @@
 from dumpling.JTAGTaps.PulpJTAGTap import PULPJtagTap
 import bitstring
 from bitstring import BitArray
-bitstring.lsb0 = True #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
+if (int(bitstring.__version__[0]) < 4):
+    bitstring.set_lsb0(True) #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
+else:
+    bitstring.lsb0 = True #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
 
 
 class PULPJTagTapRosetta(PULPJtagTap):
diff --git a/src/dumpling/JTAGTaps/PulpJTAGTapVega.py b/src/dumpling/JTAGTaps/PulpJTAGTapVega.py
index b694181..67f2091 100644
--- a/src/dumpling/JTAGTaps/PulpJTAGTapVega.py
+++ b/src/dumpling/JTAGTaps/PulpJTAGTapVega.py
@@ -21,7 +21,10 @@
 from dumpling.Common.VectorBuilder import VectorBuilder
 from dumpling.Drivers.JTAG import JTAGTap, JTAGDriver, JTAGRegister
 from bitstring import BitArray
-bitstring.lsb0 = True #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
+if (int(bitstring.__version__[0]) < 4):
+    bitstring.set_lsb0(True) #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
+else:
+    bitstring.lsb0 = True #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
 
 
 class PULPJtagTapVega(JTAGTap):
diff --git a/src/dumpling/JTAGTaps/RISCVDebugTap.py b/src/dumpling/JTAGTaps/RISCVDebugTap.py
index 7368a3b..a14cb94 100644
--- a/src/dumpling/JTAGTaps/RISCVDebugTap.py
+++ b/src/dumpling/JTAGTaps/RISCVDebugTap.py
@@ -20,7 +20,10 @@
 from dumpling.Common.VectorBuilder import VectorBuilder
 from dumpling.Drivers.JTAG import JTAGDriver, JTAGRegister, JTAGTap
 from bitstring import BitArray
-bitstring.lsb0 = True #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
+if (int(bitstring.__version__[0]) < 4):
+    bitstring.set_lsb0(True) #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
+else:
+    bitstring.lsb0 = True #Enables the experimental mode to index LSB with 0 instead of the MSB (see thread https://github.com/scott-griffiths/bitstring/issues/156)
 
 class DMIOp(Enum):
     NOP = '00'