diff --git a/R-minimal/environment.yml b/R-minimal/environment.yml
index eef32e1..ce0771c 100644
--- a/R-minimal/environment.yml
+++ b/R-minimal/environment.yml
@@ -1,6 +1,13 @@
 name: "base"
+# WARNING : As Renku makes use of mamba for more efficient package builds, please use the popular "conda-forge" channel
+# For more details : https://mamba.readthedocs.io/en/latest/user_guide/troubleshooting.html#mixing-the-defaults-and-conda-forge-channels
+# Using the defaults channel from Anaconda can easily result in getting your
+# laptop, CI pipeline, etc. blacklisted by Anaconda which makes building packages
+# impossible. To get permission to use Anaconda again you need to either pay or prove that
+# you meet the requirements for a free license. Using the conda-forge channel avoids 
+# these restrictions completely.
 channels:
-  - defaults
+  - conda-forge
 # dependencies:
 # - add packages here
 # - one per line
diff --git a/bioc-minimal/environment.yml b/bioc-minimal/environment.yml
index eef32e1..ce0771c 100644
--- a/bioc-minimal/environment.yml
+++ b/bioc-minimal/environment.yml
@@ -1,6 +1,13 @@
 name: "base"
+# WARNING : As Renku makes use of mamba for more efficient package builds, please use the popular "conda-forge" channel
+# For more details : https://mamba.readthedocs.io/en/latest/user_guide/troubleshooting.html#mixing-the-defaults-and-conda-forge-channels
+# Using the defaults channel from Anaconda can easily result in getting your
+# laptop, CI pipeline, etc. blacklisted by Anaconda which makes building packages
+# impossible. To get permission to use Anaconda again you need to either pay or prove that
+# you meet the requirements for a free license. Using the conda-forge channel avoids 
+# these restrictions completely.
 channels:
-  - defaults
+  - conda-forge
 # dependencies:
 # - add packages here
 # - one per line
diff --git a/julia-minimal/environment.yml b/julia-minimal/environment.yml
index d10b319..ce0771c 100644
--- a/julia-minimal/environment.yml
+++ b/julia-minimal/environment.yml
@@ -1,8 +1,13 @@
 name: "base"
-# WARNING : As Renku makes use of mamba for more efficient package builds, please use EITHER the Ananconda "defaults" channel OR the popular "conda-forge" channels
+# WARNING : As Renku makes use of mamba for more efficient package builds, please use the popular "conda-forge" channel
 # For more details : https://mamba.readthedocs.io/en/latest/user_guide/troubleshooting.html#mixing-the-defaults-and-conda-forge-channels
+# Using the defaults channel from Anaconda can easily result in getting your
+# laptop, CI pipeline, etc. blacklisted by Anaconda which makes building packages
+# impossible. To get permission to use Anaconda again you need to either pay or prove that
+# you meet the requirements for a free license. Using the conda-forge channel avoids 
+# these restrictions completely.
 channels:
-  - defaults
+  - conda-forge
 # dependencies:
 # - add packages here
 # - one per line
diff --git a/python-minimal/environment.yml b/python-minimal/environment.yml
index d10b319..ce0771c 100644
--- a/python-minimal/environment.yml
+++ b/python-minimal/environment.yml
@@ -1,8 +1,13 @@
 name: "base"
-# WARNING : As Renku makes use of mamba for more efficient package builds, please use EITHER the Ananconda "defaults" channel OR the popular "conda-forge" channels
+# WARNING : As Renku makes use of mamba for more efficient package builds, please use the popular "conda-forge" channel
 # For more details : https://mamba.readthedocs.io/en/latest/user_guide/troubleshooting.html#mixing-the-defaults-and-conda-forge-channels
+# Using the defaults channel from Anaconda can easily result in getting your
+# laptop, CI pipeline, etc. blacklisted by Anaconda which makes building packages
+# impossible. To get permission to use Anaconda again you need to either pay or prove that
+# you meet the requirements for a free license. Using the conda-forge channel avoids 
+# these restrictions completely.
 channels:
-  - defaults
+  - conda-forge
 # dependencies:
 # - add packages here
 # - one per line