diff --git a/environment-dev-arm.yml b/environment-dev-arm.yml
index c98dd04ec..5561967a7 100644
--- a/environment-dev-arm.yml
+++ b/environment-dev-arm.yml
@@ -15,6 +15,8 @@ dependencies:
   - pyfftw
   - pywavelets
   - sympy
+  - pymc>=5
+  - pytensor
   - matplotlib
   - ipython
   - pytest
diff --git a/environment-dev.yml b/environment-dev.yml
index dfefcd9d4..07c50357b 100644
--- a/environment-dev.yml
+++ b/environment-dev.yml
@@ -15,6 +15,8 @@ dependencies:
   - pyfftw
   - pywavelets
   - sympy
+  - pymc>=5
+  - pytensor
   - matplotlib
   - ipython
   - pytest