diff --git a/silkaj/cert.py b/silkaj/cert.py
index bb519f234f6f60af4868f7862bd9f41b7963f927..17ba70cfc64d8a1d067961a34c4f63684b8e5e80 100644
--- a/silkaj/cert.py
+++ b/silkaj/cert.py
@@ -16,7 +16,7 @@ along with Silkaj. If not, see <https://www.gnu.org/licenses/>.
 """
 
 import sys
-from click import command, argument, echo, confirm
+import click
 from time import time
 from tabulate import tabulate
 from duniterpy.api import bma
@@ -33,8 +33,8 @@ from silkaj.constants import SUCCESS_EXIT_STATUS
 from silkaj.crypto_tools import is_pubkey_and_check
 
 
-@command("cert", help="Send certification")
-@argument("uid_pubkey_to_certify")
+@click.command("cert", help="Send certification")
+@click.argument("uid_pubkey_to_certify")
 @coroutine
 async def send_certification(uid_pubkey_to_certify):
     client = ClientInstance().client
@@ -144,7 +144,7 @@ async def certification_confirmation(
     cert_begins = convert_time(time(), "date")
     cert_ends = convert_time(time() + params["sigValidity"], "date")
     cert.append(["Valid", cert_begins, "—>", cert_ends])
-    echo(tabulate(cert, tablefmt="fancy_grid"))
-    if not confirm("Do you confirm sending this certification?"):
+    click.echo(tabulate(cert, tablefmt="fancy_grid"))
+    if not click.confirm("Do you confirm sending this certification?"):
         await client.close()
         sys.exit(SUCCESS_EXIT_STATUS)
diff --git a/silkaj/tx.py b/silkaj/tx.py
index 2ad42243671a3bcf22b34dee1667f405ebdadd26..837468b896bb4ba976960d6361d6891c0ffa2bd3 100644
--- a/silkaj/tx.py
+++ b/silkaj/tx.py
@@ -19,7 +19,7 @@ from re import compile, search
 import math
 from asyncio import sleep
 from tabulate import tabulate
-from click import command, option, FloatRange
+import click
 
 from silkaj import cli_tools
 from silkaj import network_tools as nt
@@ -44,37 +44,37 @@ from duniterpy.documents.transaction import OutputSource, Unlock, SIGParameter
 MAX_COMMENT_LENGTH = 255
 
 
-@command("tx", help="Send transaction")
-@option(
+@click.command("tx", help="Send transaction")
+@click.option(
     "amounts",
     "--amount",
     "-a",
     multiple=True,
-    type=FloatRange(MINIMAL_ABSOLUTE_TX_AMOUNT),
+    type=click.FloatRange(MINIMAL_ABSOLUTE_TX_AMOUNT),
     help="Quantitative amount(s):\n-a <amount>\nMinimum amount is {0}".format(
         MINIMAL_ABSOLUTE_TX_AMOUNT
     ),
     cls=cli_tools.MutuallyExclusiveOption,
     mutually_exclusive=["amountsud", "allsources"],
 )
-@option(
+@click.option(
     "amountsud",
     "--amountUD",
     "-d",
     multiple=True,
-    type=FloatRange(MINIMAL_RELATIVE_TX_AMOUNT),
+    type=click.FloatRange(MINIMAL_RELATIVE_TX_AMOUNT),
     help=f"Relative amount(s):\n-d <amount_UD>\nMinimum amount is {MINIMAL_RELATIVE_TX_AMOUNT}",
     cls=cli_tools.MutuallyExclusiveOption,
     mutually_exclusive=["amounts", "allsources"],
 )
-@option(
+@click.option(
     "--allSources",
     is_flag=True,
     help="Send all sources to one recipient",
     cls=cli_tools.MutuallyExclusiveOption,
     mutually_exclusive=["amounts", "amountsud"],
 )
-@option(
+@click.option(
     "recipients",
     "--recipient",
     "-r",
@@ -85,15 +85,23 @@ Sending to many recipients is possible:\n\
 * With one amount, all will receive the amount\n\
 * With many amounts (one per recipient)",
 )
-@option("--comment", "-c", default="", help="Comment")
-@option(
+@click.option("--comment", "-c", default="", help="Comment")
+@click.option(
     "--outputBackChange",
     help="Pubkey recipient to send the rest of the transaction: <pubkey[:checksum]>",
 )
-@option("--yes", "-y", is_flag=True, help="Assume yes. Do not prompt confirmation")
+@click.option(
+    "--yes", "-y", is_flag=True, help="Assume yes. Do not prompt confirmation"
+)
 @tools.coroutine
 async def send_transaction(
-    amounts, amountsud, allsources, recipients, comment, outputbackchange, yes
+    amounts,
+    amountsud,
+    allsources,
+    recipients,
+    comment,
+    outputbackchange,
+    yes,
 ):
     """
     Main function