diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 4ae0707bd..8403a6450 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -269,7 +269,7 @@ jobs:
       - name: Checkout Repository
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - name: Setup Conda (Micromamba) with Python${{ matrix.python-version }}
-        uses: mamba-org/setup-micromamba@617811f69075e3fd3ae68ca64220ad065877f246 # v2.0.0
+        uses: mamba-org/setup-micromamba@ab6bf8bf7403e8023a094abeec19d6753bdc143e # v2.0.1
         with:
           cache-downloads: true
           cache-environment: true
diff --git a/.github/workflows/publish-pypi.yml b/.github/workflows/publish-pypi.yml
index e257a4f20..655555ffa 100644
--- a/.github/workflows/publish-pypi.yml
+++ b/.github/workflows/publish-pypi.yml
@@ -41,4 +41,4 @@ jobs:
         run: |
           python -m flit build
       - name: Publish distribution 📦 to PyPI
-        uses: pypa/gh-action-pypi-publish@fb13cb306901256ace3dab689990e13a5550ffaa # v1.11.0
+        uses: pypa/gh-action-pypi-publish@15c56dba361d8335944d31a2ecd17d700fc7bcbc # v1.12.2
diff --git a/.github/workflows/tag-testpypi.yml b/.github/workflows/tag-testpypi.yml
index ed02073b3..45b238c6b 100644
--- a/.github/workflows/tag-testpypi.yml
+++ b/.github/workflows/tag-testpypi.yml
@@ -41,7 +41,7 @@ jobs:
         run: |
           python -m flit build
       - name: Publish distribution 📦 to Test PyPI
-        uses: pypa/gh-action-pypi-publish@fb13cb306901256ace3dab689990e13a5550ffaa # v1.11.0
+        uses: pypa/gh-action-pypi-publish@15c56dba361d8335944d31a2ecd17d700fc7bcbc # v1.12.2
         with:
           repository-url: https://test.pypi.org/legacy/
           skip-existing: true
diff --git a/.github/workflows/upstream.yml b/.github/workflows/upstream.yml
index cbe84ef2f..a95f774f0 100644
--- a/.github/workflows/upstream.yml
+++ b/.github/workflows/upstream.yml
@@ -58,7 +58,7 @@ jobs:
         with:
           fetch-depth: 0 # Fetch all history for all branches and tags.
       - name: Setup Conda (Micromamba) with Python${{ matrix.python-version }}
-        uses: mamba-org/setup-micromamba@617811f69075e3fd3ae68ca64220ad065877f246 # v2.0.0
+        uses: mamba-org/setup-micromamba@ab6bf8bf7403e8023a094abeec19d6753bdc143e # v2.0.1
         with:
           cache-downloads: true
           cache-environment: true
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 16cf6a9c6..231c6116c 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -6,6 +6,10 @@ v0.54.0 (unreleased)
 --------------------
 Contributors to this version: Trevor James Smith (:user:`Zeitsperre`).
 
+Breaking changes
+----------------
+* The minimum required version of `dask` has been increased to `2024.8.1`. `dask` versions at or above `2024.11` are not yet supported. (:issue:`1992`, :pull:`1991`).
+
 Internal changes
 ^^^^^^^^^^^^^^^^
 * `xclim` now uses a `src` layout for the codebase. Structure-dependent functions, documentation, and build commands have been adapted to reflect these changes. (:pull:`1971`).
diff --git a/environment.yml b/environment.yml
index bd6935dc9..4e1333aa2 100644
--- a/environment.yml
+++ b/environment.yml
@@ -9,7 +9,7 @@ dependencies:
   - cf_xarray >=0.9.3
   - cftime >=1.4.1
   - click >=8.1
-  - dask >=2.6.0
+  - dask >=2024.8.1,<2024.11.0
   - filelock >=3.14.0
   - jsonpickle >=3.1.0
   - numba >=0.54.1
diff --git a/pyproject.toml b/pyproject.toml
index af72eea3e..7e59e6ea5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,7 @@ dependencies = [
   "cf-xarray >=0.9.3", # cf-xarray is differently named on conda-forge
   "cftime >=1.4.1",
   "click >=8.1",
-  "dask[array] >=2.6",
+  "dask[array] >=2024.8.1,<2024.11.0",
   "filelock >=3.14.0",
   "jsonpickle >=3.1.0",
   "numba >=0.54.1",
@@ -129,7 +129,6 @@ xclim = "xclim.cli:cli"
 
 [tool.black]
 target-version = [
-  "py39",
   "py310",
   "py311",
   "py312"