diff --git a/environment.yml b/environment.yml
index b1ba9766..c32e533c 100644
--- a/environment.yml
+++ b/environment.yml
@@ -1,9 +1,7 @@
 name: flame
 channels:
   - default
-  - rdkit
   - conda-forge 
-  - chembl
 dependencies:
   - pip
   - python=3.6
diff --git a/environment_mac.yml b/environment_mac.yml
index 6bc102a5..99400acf 100644
--- a/environment_mac.yml
+++ b/environment_mac.yml
@@ -1,9 +1,7 @@
 name: flame
 channels:
   - default
-  - rdkit
   - conda-forge 
-  - chembl
 dependencies:
   - pip
   - python=3.6