diff --git a/conda/environments/cudf_dev_cuda10.1.yml b/conda/environments/cudf_dev_cuda10.1.yml
index 2ec8af368f2..65b72d53496 100644
--- a/conda/environments/cudf_dev_cuda10.1.yml
+++ b/conda/environments/cudf_dev_cuda10.1.yml
@@ -42,8 +42,8 @@ dependencies:
   - mypy=0.782
   - typing_extensions
   - pre_commit
-  - dask>=2021.3.1
-  - distributed>=2.22.0
+  - dask==2021.3.1
+  - distributed==2021.3.1
   - streamz
   - dlpack
   - arrow-cpp=1.0.1
diff --git a/conda/environments/cudf_dev_cuda10.2.yml b/conda/environments/cudf_dev_cuda10.2.yml
index 64dcc458196..b05bbd89572 100644
--- a/conda/environments/cudf_dev_cuda10.2.yml
+++ b/conda/environments/cudf_dev_cuda10.2.yml
@@ -42,8 +42,8 @@ dependencies:
   - mypy=0.782
   - typing_extensions
   - pre_commit
-  - dask>=2021.3.1
-  - distributed>=2.22.0
+  - dask==2021.3.1
+  - distributed==2021.3.1
   - streamz
   - dlpack
   - arrow-cpp=1.0.1
diff --git a/conda/environments/cudf_dev_cuda11.0.yml b/conda/environments/cudf_dev_cuda11.0.yml
index f464738eaa8..7b1438da559 100644
--- a/conda/environments/cudf_dev_cuda11.0.yml
+++ b/conda/environments/cudf_dev_cuda11.0.yml
@@ -42,8 +42,8 @@ dependencies:
   - mypy=0.782
   - typing_extensions
   - pre_commit
-  - dask>=2021.3.1
-  - distributed>=2.22.0
+  - dask==2021.3.1
+  - distributed==2021.3.1
   - streamz
   - dlpack
   - arrow-cpp=1.0.1
diff --git a/conda/environments/cudf_dev_cuda11.1.yml b/conda/environments/cudf_dev_cuda11.1.yml
index fae94974502..91d180c4fa5 100644
--- a/conda/environments/cudf_dev_cuda11.1.yml
+++ b/conda/environments/cudf_dev_cuda11.1.yml
@@ -42,8 +42,8 @@ dependencies:
   - mypy=0.782
   - typing_extensions
   - pre_commit
-  - dask>=2021.3.1
-  - distributed>=2.22.0
+  - dask==2021.3.1
+  - distributed==2021.3.1
   - streamz
   - dlpack
   - arrow-cpp=1.0.1
diff --git a/conda/environments/cudf_dev_cuda11.2.yml b/conda/environments/cudf_dev_cuda11.2.yml
index fa0a69ad1ea..2c0b89c16a3 100644
--- a/conda/environments/cudf_dev_cuda11.2.yml
+++ b/conda/environments/cudf_dev_cuda11.2.yml
@@ -42,8 +42,8 @@ dependencies:
   - mypy=0.782
   - typing_extensions
   - pre_commit
-  - dask>=2021.3.1
-  - distributed>=2.22.0
+  - dask==2021.3.1
+  - distributed==2021.3.1
   - streamz
   - dlpack
   - arrow-cpp=1.0.1
diff --git a/conda/recipes/dask-cudf/meta.yaml b/conda/recipes/dask-cudf/meta.yaml
index 66bffdfd61e..3711509056a 100644
--- a/conda/recipes/dask-cudf/meta.yaml
+++ b/conda/recipes/dask-cudf/meta.yaml
@@ -23,12 +23,12 @@ requirements:
   host:
     - python
     - cudf {{ version }}
-    - dask>=2021.3.1
+    - dask==2021.3.1
     - distributed >=2.22.0
   run:
     - python
     - cudf {{ version }}
-    - dask>=2021.3.1
+    - dask==2021.3.1
     - distributed >=2.22.0
   
 test:
diff --git a/python/custreamz/dev_requirements.txt b/python/custreamz/dev_requirements.txt
index 7e300376f4e..21c737e6e0f 100644
--- a/python/custreamz/dev_requirements.txt
+++ b/python/custreamz/dev_requirements.txt
@@ -3,8 +3,8 @@
 flake8==3.8.3
 black==19.10b0
 isort==5.0.7
-dask>=2021.3.1
-distributed>=2.22.0
+dask==2021.3.1
+distributed==2021.3.1
 streamz
 python-confluent-kafka
 pytest
diff --git a/python/dask_cudf/dev_requirements.txt b/python/dask_cudf/dev_requirements.txt
index 39da0da3012..625fe26837f 100644
--- a/python/dask_cudf/dev_requirements.txt
+++ b/python/dask_cudf/dev_requirements.txt
@@ -1,7 +1,7 @@
 # Copyright (c) 2021, NVIDIA CORPORATION.
 
-dask>=2021.3.1
-distributed>=2.22.0
+dask==2021.3.1
+distributed==2021.3.1
 fsspec>=0.6.0
 numba>=0.49.0,!=0.51.0
 numpy
@@ -11,4 +11,4 @@ setuptools
 wheel
 flake8==3.8.3
 black==19.10b0
-isort==5.0.7
\ No newline at end of file
+isort==5.0.7
diff --git a/python/dask_cudf/setup.py b/python/dask_cudf/setup.py
index 1318701b845..a99b95ff921 100644
--- a/python/dask_cudf/setup.py
+++ b/python/dask_cudf/setup.py
@@ -10,8 +10,8 @@
 
 install_requires = [
     "cudf",
-    "dask>=2021.3.1",
-    "distributed>=2.22.0",
+    "dask==2021.3.1",
+    "distributed==2021.3.1",
     "fsspec>=0.6.0",
     "numpy",
     "pandas>=1.0,<1.3.0dev0",
@@ -23,8 +23,8 @@
         "pandas>=1.0,<1.3.0dev0",
         "pytest",
         "numba>=0.49.0,!=0.51.0",
-        "dask>=2021.3.1",
-        "distributed>=2.22.0",
+        "dask==2021.3.1",
+        "distributed==2021.3.1",
     ]
 }