diff --git a/environment.yml b/environment.yml
index 2ff0e09e488138e6a263d243036334dd0b37ee04..0ea82300042828ac67ac58c998a98d6e3715bc06 100644
--- a/environment.yml
+++ b/environment.yml
@@ -23,7 +23,6 @@ dependencies:
   - pip:
     - atomicwrites==1.3.0
     - attrs==19.1.0
-    - bleach==3.1.0
     - cairocffi==1.0.2
     - cairosvg==2.4.0
     - cffi==1.12.3
@@ -33,9 +32,8 @@ dependencies:
     - cssselect2==0.2.1
     - cycler==0.10.0
     - defusedxml==0.6.0
-    - docutils==0.15.1
     - filelock==3.0.12
-    - flatland-rl==0.3.6
+    - flatland-rl==0.3.8
     - idna==2.8
     - importlib-metadata==0.19
     - importlib-resources==1.0.2
@@ -49,32 +47,25 @@ dependencies:
     - packaging==19.0
     - pandas==0.25.0
     - pillow==6.1.0
-    - pkginfo==1.5.0.1
     - pluggy==0.12.0
     - py==1.8.0
     - pyarrow==0.14.1
     - pycparser==2.19
-    - pygments==2.4.2
     - pyparsing==2.4.1.1
     - pytest==5.0.1
     - pytest-runner==5.1
     - python-dateutil==2.8.0
     - python-gitlab==1.10.0
     - pytz==2019.1
-    - readme-renderer==24.0
     - recordtype==1.3
     - redis==3.3.2
     - requests==2.22.0
-    - requests-toolbelt==0.9.1
-    - screeninfo==0.4
     - six==1.12.0
     - svgutils==0.3.1
     - timeout-decorator==0.4.1
     - tinycss2==1.0.2
     - toml==0.10.0
     - tox==3.13.2
-    - tqdm==4.32.2
-    - twine==1.13.0
     - urllib3==1.25.3
     - ushlex==0.99.1
     - virtualenv==16.7.2