diff --git a/conda-envs/environment-dev-py37.yml b/conda-envs/environment-dev-py37.yml
index 394ef30fde..21cea38529 100644
--- a/conda-envs/environment-dev-py37.yml
+++ b/conda-envs/environment-dev-py37.yml
@@ -3,7 +3,7 @@ channels:
 - conda-forge
 - defaults
 dependencies:
-- aesara>=2.1.0
+- aesara>=2.1.0, <2.2.0
 - arviz>=0.11.2
 - cachetools>=4.2.1
 - cloudpickle
diff --git a/conda-envs/environment-dev-py38.yml b/conda-envs/environment-dev-py38.yml
index 4e8bc64b85..170eb86642 100644
--- a/conda-envs/environment-dev-py38.yml
+++ b/conda-envs/environment-dev-py38.yml
@@ -3,7 +3,7 @@ channels:
 - conda-forge
 - defaults
 dependencies:
-- aesara>=2.1.0
+- aesara>=2.1.0, <2.2.0
 - arviz>=0.11.2
 - cachetools>=4.2.1
 - cloudpickle
diff --git a/conda-envs/environment-dev-py39.yml b/conda-envs/environment-dev-py39.yml
index 3e33f5c182..2f431ba0d8 100644
--- a/conda-envs/environment-dev-py39.yml
+++ b/conda-envs/environment-dev-py39.yml
@@ -3,7 +3,7 @@ channels:
 - conda-forge
 - defaults
 dependencies:
-- aesara>=2.1.0
+- aesara>=2.1.0, <2.2.0
 - arviz>=0.11.2
 - cachetools>=4.2.1
 - cloudpickle
diff --git a/conda-envs/windows-environment-dev-py38.yml b/conda-envs/windows-environment-dev-py38.yml
index b8f054212d..3c25ed04ad 100644
--- a/conda-envs/windows-environment-dev-py38.yml
+++ b/conda-envs/windows-environment-dev-py38.yml
@@ -4,7 +4,7 @@ channels:
 - defaults
 dependencies:
  # base dependencies (see install guide for Windows)
-- aesara>=2.1.0
+- aesara>=2.1.0, <2.2.0
 - arviz>=0.11.2
 - cachetools>=4.2.1
 - cloudpickle
diff --git a/requirements-dev.txt b/requirements-dev.txt
index a3107a4c73..3304e59fc9 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,7 +1,7 @@
 # This file is auto-generated by scripts/generate_pip_deps_from_conda.py, do not modify.
 # See that file for comments about the need/usage of each dependency.
 
-aesara>=2.1.0
+aesara>=2.1.0, <2.2.0
 arviz>=0.11.2
 cachetools>=4.2.1
 cloudpickle
diff --git a/requirements.txt b/requirements.txt
index 8623a90ae7..cd4211d893 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-aesara>=2.1.0
+aesara>=2.1.0,<2.2.0
 arviz>=0.11.2
 cachetools>=4.2.1
 cloudpickle