diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index adf4c54..46cb559 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -39,6 +39,7 @@ jobs:
           conda activate STUI
           pip install numpy==1.10.1
           pip install py2app==0.22 matplotlib==2.2.5 pyfits==3.5 twisted==20.3.0 pygame==1.9.6
+          pip install modulegraph==0.19.2
         shell: bash -l {0}
 
       - name: Build Imaging
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index f7f1262..dc1c312 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -62,6 +62,8 @@ jobs:
           conda activate STUI
           pip install numpy==1.10.1
           pip install py2app==0.22 matplotlib==2.2.5 pyfits==3.5 twisted==20.3.0 pygame==1.9.6
+          pip install modulegraph==0.19.2
+
         shell: bash -l {0}
 
       - name: Build Imaging