diff --git a/environment.yml b/environment.yml
index c1d8090..43845ca 100644
--- a/environment.yml
+++ b/environment.yml
@@ -5,11 +5,8 @@ channels:
   - defaults
 dependencies:
   - "python>=3"
-  - "nodejs>=12"
-  - pip
+  - "nodejs=12"
   - snakemake-minimal=5.8.1
   - biopython=1.74
   - minimap2=2.17
-  - pip:
-    - binlorry==1.3.0_alpha1
-    - git+https://github.com/artic-network/Porechop.git@v0.3.2pre
+