diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 264ea40032..d7bca6a28a 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -26,7 +26,7 @@ repos:
       - types-filelock
       - types-setuptools
       - arviz
-      - aesara==2.6.2
+      - aesara==2.6.6
       - aeppl==0.0.31
       always_run: true
       require_serial: true
diff --git a/conda-envs/environment-dev-py37.yml b/conda-envs/environment-dev-py37.yml
index 734064187c..0fbe5b9bf5 100644
--- a/conda-envs/environment-dev-py37.yml
+++ b/conda-envs/environment-dev-py37.yml
@@ -5,7 +5,7 @@ channels:
 - defaults
 dependencies:
 - aeppl=0.0.31
-- aesara=2.6.2
+- aesara=2.6.6
 - arviz>=0.12.0
 - blas
 - cachetools>=4.2.1
diff --git a/conda-envs/environment-dev-py38.yml b/conda-envs/environment-dev-py38.yml
index 3e45633dc9..b27ba13f3c 100644
--- a/conda-envs/environment-dev-py38.yml
+++ b/conda-envs/environment-dev-py38.yml
@@ -5,7 +5,7 @@ channels:
 - defaults
 dependencies:
 - aeppl=0.0.31
-- aesara=2.6.2
+- aesara=2.6.6
 - arviz>=0.12.0
 - blas
 - cachetools>=4.2.1
diff --git a/conda-envs/environment-dev-py39.yml b/conda-envs/environment-dev-py39.yml
index b0044ff700..f46c83edd0 100644
--- a/conda-envs/environment-dev-py39.yml
+++ b/conda-envs/environment-dev-py39.yml
@@ -5,7 +5,7 @@ channels:
 - defaults
 dependencies:
 - aeppl=0.0.31
-- aesara=2.6.2
+- aesara=2.6.6
 - arviz>=0.12.0
 - blas
 - cachetools>=4.2.1
diff --git a/conda-envs/environment-test-py37.yml b/conda-envs/environment-test-py37.yml
index 7decc54f63..c1473e9a81 100644
--- a/conda-envs/environment-test-py37.yml
+++ b/conda-envs/environment-test-py37.yml
@@ -5,7 +5,7 @@ channels:
 - defaults
 dependencies:
 - aeppl=0.0.31
-- aesara=2.6.2
+- aesara=2.6.6
 - arviz>=0.12.0
 - blas
 - cachetools>=4.2.1
diff --git a/conda-envs/environment-test-py38.yml b/conda-envs/environment-test-py38.yml
index 65b47f88c8..e24eaaa9cd 100644
--- a/conda-envs/environment-test-py38.yml
+++ b/conda-envs/environment-test-py38.yml
@@ -5,7 +5,7 @@ channels:
 - defaults
 dependencies:
 - aeppl=0.0.31
-- aesara=2.6.2
+- aesara=2.6.6
 - arviz>=0.12.0
 - blas
 - cachetools>=4.2.1
diff --git a/conda-envs/environment-test-py39.yml b/conda-envs/environment-test-py39.yml
index 762b10e67e..36f550718f 100644
--- a/conda-envs/environment-test-py39.yml
+++ b/conda-envs/environment-test-py39.yml
@@ -5,7 +5,7 @@ channels:
 - defaults
 dependencies:
 - aeppl=0.0.31
-- aesara=2.6.2
+- aesara=2.6.6
 - arviz>=0.12.0
 - blas
 - cachetools>=4.2.1
diff --git a/conda-envs/windows-environment-dev-py38.yml b/conda-envs/windows-environment-dev-py38.yml
index ab2e70b304..4259d0091b 100644
--- a/conda-envs/windows-environment-dev-py38.yml
+++ b/conda-envs/windows-environment-dev-py38.yml
@@ -5,7 +5,7 @@ channels:
 dependencies:
  # base dependencies (see install guide for Windows)
 - aeppl=0.0.31
-- aesara=2.6.2
+- aesara=2.6.6
 - arviz>=0.12.0
 - blas
 - cachetools>=4.2.1
diff --git a/conda-envs/windows-environment-test-py38.yml b/conda-envs/windows-environment-test-py38.yml
index 595e646141..6f73eeefc2 100644
--- a/conda-envs/windows-environment-test-py38.yml
+++ b/conda-envs/windows-environment-test-py38.yml
@@ -5,7 +5,7 @@ channels:
 dependencies:
  # base dependencies (see install guide for Windows)
 - aeppl=0.0.31
-- aesara=2.6.2
+- aesara=2.6.6
 - arviz>=0.12.0
 - blas
 - cachetools>=4.2.1
diff --git a/requirements-dev.txt b/requirements-dev.txt
index cf806f8abf..7d7523e780 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -2,7 +2,7 @@
 # See that file for comments about the need/usage of each dependency.
 
 aeppl==0.0.31
-aesara==2.6.2
+aesara==2.6.6
 arviz>=0.12.0
 cachetools>=4.2.1
 cloudpickle
diff --git a/requirements.txt b/requirements.txt
index 7d7d3d5f94..c40ee9d9b8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 aeppl==0.0.31
-aesara==2.6.2
+aesara==2.6.6
 arviz>=0.12.0
 cachetools>=4.2.1
 cloudpickle