diff --git a/scd-reduction-tools-dev.yml b/scd-reduction-tools-dev.yml
index 5b7d8f698e7da61288ab28068235ff3680c5c2b8..3f911f543d9e6cc6311f47a0bf7c113175118fb0 100644
--- a/scd-reduction-tools-dev.yml
+++ b/scd-reduction-tools-dev.yml
@@ -3,12 +3,12 @@
 name: scd-reduction-tools-dev
 
 channels:
-  - mantid/label/nightly
+  - mantid-ornl
   - conda-forge
   - defaults
 
 dependencies:
-  - mantid
+  - mantid=6.12.0.2
   - numpy
   - pycifrw
   - gemmi
@@ -28,6 +28,7 @@ dependencies:
   - dill
   - psutil
   - multiprocess
+  - pip
   - pip:
     - pyqtdarktheme
 
diff --git a/scd-reduction-tools-qa.yml b/scd-reduction-tools-qa.yml
index 940de9c54c3ba3cd947bb1f229b3185c8c0e7a7c..b09bb65d8502cd653d7925ce885ebc10d1ba6503 100644
--- a/scd-reduction-tools-qa.yml
+++ b/scd-reduction-tools-qa.yml
@@ -3,12 +3,12 @@
 name: scd-reduction-tools-qa
 
 channels:
-  - mantid/label/nightly
+  - mantid-ornl
   - conda-forge
   - defaults
 
 dependencies:
-  - mantid
+  - mantid=6.12.0.2
   - numpy
   - pycifrw
   - matplotlib
diff --git a/scd-reduction-tools.yml b/scd-reduction-tools.yml
index 61974686a5084ebf378ae2bc9241aafdef7c5121..ed8db5e00d64c1e5f0e46c5708e71d3b33fe5c34 100644
--- a/scd-reduction-tools.yml
+++ b/scd-reduction-tools.yml
@@ -3,12 +3,12 @@
 name: scd-reduction-tools
 
 channels:
-  - mantid/label/nightly
+  - mantid-ornl
   - conda-forge
   - defaults
 
 dependencies:
-  - mantid
+  - mantid=6.12.0.2
   - numpy
   - pycifrw
   - matplotlib