diff --git a/.conda/meta.yaml b/.conda/meta.yaml
index 1fb7d88..082fe33 100644
--- a/.conda/meta.yaml
+++ b/.conda/meta.yaml
@@ -18,7 +18,7 @@ requirements:
     - numpy
     - openbabel >=3
     - pyrdl
-    - python {{ python }}
+    - python==3.7
     - quantities
     - rdkit >=2018
     - scipy
@@ -37,7 +37,7 @@ requirements:
     - openbabel >=3
     - pydot
     - pyrdl
-    - python {{ python }}
+    - python==3.7
     - quantities
     - rdkit >=2018
     - scikit-learn