diff --git a/ethstaker_deposit/cli/existing_mnemonic.py b/ethstaker_deposit/cli/existing_mnemonic.py
index 4235344c..af576140 100644
--- a/ethstaker_deposit/cli/existing_mnemonic.py
+++ b/ethstaker_deposit/cli/existing_mnemonic.py
@@ -1,4 +1,5 @@
 import click
+import pyperclip
 from typing import (
     Any,
     Callable,
@@ -85,4 +86,9 @@ def validate_mnemonic(ctx: click.Context, param: Any, mnemonic: str) -> str:
 def existing_mnemonic(ctx: click.Context, mnemonic: str, mnemonic_password: str, **kwargs: Any) -> None:
     ctx.obj = {} if ctx.obj is None else ctx.obj  # Create a new ctx.obj if it doesn't exist
     ctx.obj.update({'mnemonic': mnemonic, 'mnemonic_password': mnemonic_password})
+    # Clear clipboard
+    try:  # Failing this on headless Linux is expected
+        pyperclip.copy(' ')
+    except Exception:
+        pass
     ctx.forward(generate_keys)
diff --git a/ethstaker_deposit/cli/new_mnemonic.py b/ethstaker_deposit/cli/new_mnemonic.py
index 45dcbf61..78805813 100644
--- a/ethstaker_deposit/cli/new_mnemonic.py
+++ b/ethstaker_deposit/cli/new_mnemonic.py
@@ -1,4 +1,5 @@
 import click
+import pyperclip
 from typing import (
     Any,
 )
@@ -58,6 +59,11 @@ def new_mnemonic(ctx: click.Context, mnemonic_language: str, **kwargs: Any) -> N
         click.clear()
         test_mnemonic = click.prompt(load_text(['msg_mnemonic_retype_prompt']) + '\n\n')
     click.clear()
+    # Clear clipboard
+    try:  # Failing this on headless Linux is expected
+        pyperclip.copy(' ')
+    except Exception:
+        pass
     # Do NOT use mnemonic_password.
     ctx.obj = {'mnemonic': mnemonic, 'mnemonic_password': ''}
     ctx.params['validator_start_index'] = 0
diff --git a/pyproject.toml b/pyproject.toml
index 944f63ce..7a321bf3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,6 +19,7 @@ dependencies = [
     "eth-typing",
     "eth-utils",
     "pycryptodome",
+    "pyperclip",
     "py-ecc",
     "ssz"
 ]
diff --git a/requirements.txt b/requirements.txt
index 800c09ba..61a0d54f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -245,6 +245,8 @@ pycryptodome==3.20.0 \
     --hash=sha256:f35d6cee81fa145333137009d9c8ba90951d7d77b67c79cbe5f03c7eb74d8fe2 \
     --hash=sha256:f47888542a0633baff535a04726948e876bf1ed880fddb7c10a736fa99146ab3 \
     --hash=sha256:fb3b87461fa35afa19c971b0a2b7456a7b1db7b4eba9a8424666104925b78128
+pyperclip==1.9.0 \
+    --hash=sha256:b7de0142ddc81bfc5c7507eea19da920b92252b548b96186caf94a5e2527d310
 pyrsistent==0.16.1 \
     --hash=sha256:aa2ae1c2e496f4d6777f869ea5de7166a8ccb9c2e06ebcf6c7ff1b670c98c5ef
 six==1.16.0 \