diff --git a/conda/artiq-dev/meta.yaml b/conda/artiq-dev/meta.yaml
index 274d3e0d1..bbde80b94 100644
--- a/conda/artiq-dev/meta.yaml
+++ b/conda/artiq-dev/meta.yaml
@@ -16,7 +16,7 @@ requirements:
     - setuptools 33.1.1
     - migen 0.7 py35_8+giteeccd1a
     - misoc 0.9 py35_14+gitd26c07ae
-    - jesd204b 0.4
+    - jesd204b 0.5
     - microscope
     - binutils-or1k-linux >=2.27
     - llvm-or1k 4.0.1