diff --git a/environment.yml b/environment.yml
index a4f4be6..e792e16 100644
--- a/environment.yml
+++ b/environment.yml
@@ -13,7 +13,7 @@ dependencies:
   - numpy
   - cil # make synergistic notebooks work
   - astra-toolbox # needed for ct examples
-  - scipy
+  - scipy>=1.16
   - matplotlib
   - numba
   - llvmlite  # numba dependency
diff --git a/notebooks/Synergistic/BrainWeb-single_slice_motion.ipynb b/notebooks/Synergistic/BrainWeb-single_slice_motion.ipynb
index 35fba0e..1bc3d0d 100644
--- a/notebooks/Synergistic/BrainWeb-single_slice_motion.ipynb
+++ b/notebooks/Synergistic/BrainWeb-single_slice_motion.ipynb
@@ -57,7 +57,7 @@
     "from sirf.Utilities import examples_data_path\n",
     "from sirf_exercises import exercises_data_path\n",
     "import shutil\n",
-    "from scipy.ndimage.filters import gaussian_filter"
+    "from scipy.ndimage import gaussian_filter"
    ]
   },
   {
diff --git a/notebooks/Synergistic/MAPEM_Bowsher.ipynb b/notebooks/Synergistic/MAPEM_Bowsher.ipynb
index c3bb2ff..e304e27 100644
--- a/notebooks/Synergistic/MAPEM_Bowsher.ipynb
+++ b/notebooks/Synergistic/MAPEM_Bowsher.ipynb
@@ -72,7 +72,7 @@
     "import shutil\n",
     "from tqdm.auto import tqdm, trange\n",
     "import time\n",
-    "from scipy.ndimage.filters import gaussian_filter\n",
+    "from scipy.ndimage import gaussian_filter\n",
     "import sirf.STIR as pet\n",
     "from numba import jit\n",
     "from sirf_exercises import exercises_working_path\n",
diff --git a/requirements.txt b/requirements.txt
index f49b2f8..e7ff4a8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ widgetsnbextension
 deprecation
 nodejs
 numpy
-scipy
+scipy>=1.16
 matplotlib
 numba
 llvmlite  # numba dependency