diff --git a/lbmpy_tests/phasefield/test_entropic_model.ipynb b/lbmpy_tests/phasefield/test_entropic_model.ipynb
index 3edab1c128fc60a5154c52833937ffc7a4933fc4..8fd021ec6521360a0b92de9836551cd6e38968d6 100644
--- a/lbmpy_tests/phasefield/test_entropic_model.ipynb
+++ b/lbmpy_tests/phasefield/test_entropic_model.ipynb
@@ -1,5 +1,15 @@
 {
  "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import pytest\n",
+    "pytest.importorskip('scipy.ndimage')"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 1,
diff --git a/lbmpy_tests/phasefield/test_liquid_lens_angles.ipynb b/lbmpy_tests/phasefield/test_liquid_lens_angles.ipynb
index e190dc0c1445d37d598462d67b4fd69a0add0073..721d10a583a84f4a0647dc3a4fb796e4d2bc8f05 100644
--- a/lbmpy_tests/phasefield/test_liquid_lens_angles.ipynb
+++ b/lbmpy_tests/phasefield/test_liquid_lens_angles.ipynb
@@ -1,5 +1,15 @@
 {
  "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import pytest\n",
+    "pytest.importorskip('skimage')"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 1,
diff --git a/lbmpy_tests/phasefield/test_neumann_evaluation_circle_fitting.ipynb b/lbmpy_tests/phasefield/test_neumann_evaluation_circle_fitting.ipynb
index 45610c8ab17c950ff309c0d3cde6ce6fa78c285d..77c94b8aec3a1cc215c7df9c748871dcba777b8c 100644
--- a/lbmpy_tests/phasefield/test_neumann_evaluation_circle_fitting.ipynb
+++ b/lbmpy_tests/phasefield/test_neumann_evaluation_circle_fitting.ipynb
@@ -1,5 +1,15 @@
 {
  "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import pytest\n",
+    "pytest.importorskip('skimage')"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 1,
diff --git a/lbmpy_tests/phasefield/test_phasefieldstep_direct.ipynb b/lbmpy_tests/phasefield/test_phasefieldstep_direct.ipynb
index bd3cc549d439f370f627ce0f97c8bb1332b82629..d83c525bcfc9614604b6c6602dd11e3e28e6893d 100644
--- a/lbmpy_tests/phasefield/test_phasefieldstep_direct.ipynb
+++ b/lbmpy_tests/phasefield/test_phasefieldstep_direct.ipynb
@@ -1,5 +1,15 @@
 {
  "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import pytest\n",
+    "pytest.importorskip('skimage')"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 1,