diff --git a/environment.yml b/environment.yml
index e88eb4e..b837bde 100644
--- a/environment.yml
+++ b/environment.yml
@@ -4,22 +4,6 @@ channels:
   - bioconda
   - defaults
 dependencies:
-  - artic=1.1.3
+  - artic=1.2.1
   - artic-network::rampart=1.2.0
-  - datrie=0.8
-  - eigen=3.2=3
-  - ete3=3.1.1=py36_0
-  - goalign=0.2.8=0
-  - gotree=0.2.10=0
-  - iqtree=1.6.12
-  - libdeflate=1.3
-  - mafft=7.407=0
-  - nodejs=12
-  - phyml=3.3.20190909 # references etetoolkit build
-  - python=3
-  - seqtk=1.3
   - snakemake-minimal=5.8.1
-  - pip
-  - pip:
-      - binlorry==1.3.0_alpha1
-      - ont-fast5-api