diff --git a/.travis.yml b/.travis.yml
index 5106971..2e7fb69 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,12 +17,9 @@ jobs:
       install:
         - echo "---> Running PRE-BUILDING stage..."
         - python -m pip install --upgrade pip --force-reinstall
-        - pip install setuptools==59.5.0
-        - pip install twine==4.0.1
         - pip install -r requirements.txt
       before_script:
         - export PYTHONPATH=$PYTHONPATH:$PWD:$PWD/tksbrokerapi:$PWD/tests
-        - env
       script:
         - echo "---> Running TESTING stage..."
         - pytest tests -v --disable-pytest-warnings
@@ -33,4 +30,4 @@ jobs:
       after_failure:
         - echo "Some issues occurred. See full logs."
       after_success:
-        - echo "All stages PRE-BUILDING -> TESTING -> BUILDING -> PUBLISHING to PyPI — done"
+        - echo "All stages PRE-BUILDING -> TESTING -> BUILDING -> PUBLISHING to PyPI - done"
diff --git a/requirements.txt b/requirements.txt
index cd19a70..a11946f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,12 @@
 # The order of packages is significant, because pip processes them in the order of appearance.
 # Changing the order has an impact on the overall integration  process, which may cause troubles later.
+
+# Build requirements:
 pytest>=7.1.2
+setuptools==59.5.0
+twine==4.0.1
+
+# Packet TKSBrokerAPI requirements:
 requests>=2.25.1  # Apache-2.0 license
 pandas>=1.2.2
 python-dateutil>=2.8.1  # Apache-2.0 license