diff --git a/build_tools/conda_qt5_min_ubuntu.yml b/build_tools/conda_qt5_min_ubuntu.yml
index 6d0b83b037..a7a392fc26 100644
--- a/build_tools/conda_qt5_min_ubuntu.yml
+++ b/build_tools/conda_qt5_min_ubuntu.yml
@@ -5,7 +5,6 @@ dependencies:
  - matplotlib=2.2.2
  - scipy=1.1.0
  - hdf5=1.10.1
- - h5py=3.1
  - ipython=6
  - ipykernel=4.9
  - jupyter
@@ -31,3 +30,4 @@ dependencies:
    - xhtml2pdf==0.2.2
    - qt5reactor==0.5
    - pillow==8.1.2
+   - h5py==3.1
diff --git a/build_tools/conda_qt5_win_commercial.yml b/build_tools/conda_qt5_win_commercial.yml
index 7f16200c95..3c341581a1 100644
--- a/build_tools/conda_qt5_win_commercial.yml
+++ b/build_tools/conda_qt5_win_commercial.yml
@@ -12,7 +12,6 @@ dependencies:
  - pyopencl=2018.2.2
  - scipy=1.2.0
  - hdf5=1.10.4
- - h5py=3.1
  - lxml=4.6.3
  - twisted=18.9.0
  - sphinx=1.8.5
@@ -34,4 +33,5 @@ dependencies:
    - ../../../PyQt5_commercial-5.12.2-5.12.3-cp35.cp36.cp37.cp38-none-win_amd64.whl
    - qt5reactor==0.5
    - tinycc==1.1
-   - pillow==8.1.2
\ No newline at end of file
+   - pillow==8.1.2
+   - h5py==3.1