diff --git a/.ci.yml b/.ci.yml
index 19df72a3..111a9371 100644
--- a/.ci.yml
+++ b/.ci.yml
@@ -12,7 +12,7 @@ lint:
     - apt-get install -y --no-install-recommends python3-pip
     - python3 -m pip install -U pip wheel setuptools
   script:
-    - python3 -m pip install -r requirements.dev.txt
+    - python3 -m pip install -r requirements.txt
     - nox -s isort_check black_check flake8
 
 pytest:
@@ -22,7 +22,7 @@ pytest:
   before_script: *BeforeScript
   script:
     - apt-get install -y --no-install-recommends git python3-dev
-    - python3 -m pip install -r requirements.dev.txt
+    - python3 -m pip install nox
     - python3 -m pip install git+https://github.com/antmicro/tuttest
     - tuttest README.md | bash -
     - nox -s tests_with_report
diff --git a/.github/workflows/pipeline.yml b/.github/workflows/pipeline.yml
index afff4a21..0c726eec 100644
--- a/.github/workflows/pipeline.yml
+++ b/.github/workflows/pipeline.yml
@@ -34,7 +34,7 @@ jobs:
             python3-dev \
             yosys
           python3 -m pip install --upgrade pip wheel setuptools
-          python3 -m pip install -r requirements.dev.txt
+          python3 -m pip install nox
           python3 -m pip install git+https://github.com/antmicro/tuttest
 
       - name: Run lint checks
diff --git a/docs/source/developers_guide/setup.md b/docs/source/developers_guide/setup.md
index 40a36629..b481413d 100644
--- a/docs/source/developers_guide/setup.md
+++ b/docs/source/developers_guide/setup.md
@@ -1,7 +1,7 @@
 # Setup
 
 It is recommended for developers to keep code style and frequently run tests.
-In order to setup the developer's environment install python packages from `requirements.dev.txt`, which shall include `nox` and `pre-commit`:
+In order to setup the developer's environment install python packages from `requirements.txt`, which shall include `nox` and `pre-commit`:
 
 ```bash
 python -m venv venv
diff --git a/noxfile.py b/noxfile.py
index e7fd45c8..efc3429c 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -6,7 +6,7 @@
 
 @nox.session()
 def pre_commit(session: nox.Session) -> None:
-    session.install("-r", "requirements.dev.txt")
+    session.install("-r", "requirements.txt")
     session.run("pre-commit", "install")
     session.run("pre-commit", "run", "--all-files")
 
diff --git a/requirements.dev.txt b/requirements.dev.txt
deleted file mode 100644
index 66f264ba..00000000
--- a/requirements.dev.txt
+++ /dev/null
@@ -1,6 +0,0 @@
-flake8
-nox
-pre-commit
-pytest
-pytest-cov
-pytest-lazy-fixtures
diff --git a/requirements.impl.txt b/requirements.impl.txt
deleted file mode 100644
index f4cb0921..00000000
--- a/requirements.impl.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-edalize==0.4.0
-fusesoc==1.12.0
diff --git a/requirements.txt b/requirements.txt
index 7df50d6a..1d9ede66 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,8 @@
--e .
--r requirements.dev.txt
--r requirements.impl.txt
+flake8
+nox
+pre-commit
+pytest
+pytest-cov
+pytest-lazy-fixtures
+edalize==0.4.0
+fusesoc==1.12.0