diff --git a/conda.recipe/meta.yaml b/conda.recipe/meta.yaml
index 50c9943..90d42ba 100644
--- a/conda.recipe/meta.yaml
+++ b/conda.recipe/meta.yaml
@@ -35,7 +35,7 @@ requirements:
 
   run:
     - python
-    - mantid=6.8.0
+    - mantid=6.11
     - numpy
     - scipy
     - pandas
diff --git a/docs/source/releases.rst b/docs/source/releases.rst
index e778e48..076596a 100644
--- a/docs/source/releases.rst
+++ b/docs/source/releases.rst
@@ -13,9 +13,10 @@ Release Notes
 
 **Of interest to the Developer:**
 
-- PR #14 transition from pip to conda when installing dependency finddata
-- PR #13: Take average of intensity values with duplicate Q AND solve the issue with bg interpolation when bg q and sample q values are too close or identical
-- PR #12: switch from mantid to mantidworkbench conda package
+- PR 15: update Mantid dependency to 6.11
+- PR 14: transition from pip to conda when installing dependency finddata
+- PR 13: Take average of intensity values with duplicate Q AND solve the issue with bg interpolation when bg q and sample q values are too close or identical
+- PR 12: switch from mantid to mantidworkbench conda package
 
 1.0.0
 -----
diff --git a/environment.yml b/environment.yml
index 9f08ae1..137ae5b 100644
--- a/environment.yml
+++ b/environment.yml
@@ -6,7 +6,7 @@ channels:
 dependencies:
   - python=3.10
   - versioningit
-  - mantidworkbench=6.9.1
+  - mantidworkbench=6.11
   - pandas
   - xlsxwriter
   - neutrons::finddata=0.10