diff --git a/conda/artiq/meta.yaml b/conda/artiq/meta.yaml
index 4a9e58b78..6b2016989 100644
--- a/conda/artiq/meta.yaml
+++ b/conda/artiq/meta.yaml
@@ -31,7 +31,7 @@ requirements:
     - sphinx_rtd_theme
     - h5py
     - dateutil
-    - pyqt
+    - pyqt >=5.5
     - quamash
     - pyqtgraph
     - pygit2