diff --git a/conda/artiq-dev/meta.yaml b/conda/artiq-dev/meta.yaml
index db530e828..8f4a7efce 100644
--- a/conda/artiq-dev/meta.yaml
+++ b/conda/artiq-dev/meta.yaml
@@ -36,7 +36,7 @@ requirements:
     - sphinx_rtd_theme
     - h5py
     - dateutil
-    - pyqt
+    - pyqt >=5.5
     - quamash
     - pyqtgraph
     - pygit2
diff --git a/conda/artiq/meta.yaml b/conda/artiq/meta.yaml
index 8bc640b2c..e1e2c3b41 100644
--- a/conda/artiq/meta.yaml
+++ b/conda/artiq/meta.yaml
@@ -28,7 +28,7 @@ requirements:
     - asyncserial
     - h5py
     - dateutil
-    - pyqt
+    - pyqt >=5.5
     - quamash
     - pyqtgraph
     - pygit2