diff --git a/doc/source/references/release_notes.rst b/doc/source/references/release_notes.rst
index 24dc0e76..2e949f77 100644
--- a/doc/source/references/release_notes.rst
+++ b/doc/source/references/release_notes.rst
@@ -1,12 +1,14 @@
 Release history
 ===============
 
-6.2.0 (unreleased)
-------------------
+6.2.0
+-----
 * [maint] Upgrade and adapt to xclim 0.40.
   Moved PercentileDataArray from xclim to icclim.
   Adapted the unit cenversion to use the hydro context.
 
+* [fix] Pin xclim to exact 0.40 to avoid breaking changes.
+
 
 6.1.5
 -----
diff --git a/environment.yml b/environment.yml
index 0270b39e..15726cfc 100644
--- a/environment.yml
+++ b/environment.yml
@@ -6,7 +6,7 @@ channels:
 dependencies:
 # Core dependencies
  - python>=3.8
- - xclim>=0.40
+ - xclim==0.40
  - numpy
  - xarray>=2022.6
  - cf_xarray>=0.7.4
diff --git a/requirements.txt b/requirements.txt
index c4efa363..c3ab746c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,5 +18,5 @@ sphinx_codeautolink
 sphinx_copybutton
 sphinx_lfs_content
 xarray>=2022.6
-xclim~=0.40
+xclim==0.40
 zarr
diff --git a/requirements_dev.txt b/requirements_dev.txt
index e4ae9a04..f79a514a 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -25,5 +25,5 @@ sphinx_copybutton
 sphinx_lfs_content
 twine
 xarray>=2022.6
-xclim~=0.40
+xclim==0.40
 zarr
diff --git a/setup.py b/setup.py
index 763d04c7..292b4662 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 MINIMAL_REQUIREMENTS = [
     "numpy>=1.16",
     "xarray>=2022.6",
-    "xclim>=0.40",
+    "xclim==0.40",
     "cf_xarray>=0.7.4",
     "cftime>=1.4.1",
     "dask[array]",