diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1eb46f2..ba78dd2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,7 +14,7 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
       run: |
-        pip install -r ./tests/requirements.txt
+        pip install -r requirements.txt
         # make biokit CLI available for tests 
         make install
         # install deps for tests
@@ -35,7 +35,7 @@ jobs:
         python-version: '3.10'
     - name: Install dependencies
       run: |
-        pip install -r ./tests/requirements.txt
+        pip install -r requirements.txt
         # make clipkit CLI available for tests 
         make install
         # install test dependencies
diff --git a/requirements.txt b/requirements.txt
index a2c9820..d42ce2d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,13 @@
-biopython==1.81
+biopython==1.76
+coverage==7.3.2
+Cython==3.0.4
+exceptiongroup==1.1.3
+iniconfig==2.0.0
+mock==5.1.0
 numpy==1.24.0
+packaging==23.2
+pluggy==1.3.0
+pytest==7.4.2
+pytest-cov==4.1.0
+pytest-mock==3.0.0
+tomli==2.0.1
diff --git a/tests/requirements.txt b/tests/requirements.txt
deleted file mode 100644
index ca99e6e..0000000
--- a/tests/requirements.txt
+++ /dev/null
@@ -1,6 +0,0 @@
-mock==5.1.0
-pytest-cov==4.1.0
-pytest-mock==3.0.0
-pytest==7.4.2
-biopython==1.76
-numpy==1.24.0