diff --git a/conda/artiq-kc705-nist_clock/meta.yaml b/conda/artiq-kc705-nist_clock/meta.yaml
index 853a5cfae..bc56bf200 100644
--- a/conda/artiq-kc705-nist_clock/meta.yaml
+++ b/conda/artiq-kc705-nist_clock/meta.yaml
@@ -12,8 +12,8 @@ build:
 
 requirements:
   build:
-    - migen 0.4
-    - misoc 0.4
+    - migen 0.5.dev
+    - misoc 0.5.dev
     - llvm-or1k
     - binutils-or1k-linux >=2.27
     - rust-core-or1k
diff --git a/conda/artiq-kc705-nist_qc1/meta.yaml b/conda/artiq-kc705-nist_qc1/meta.yaml
index d5be16c2e..2ee0b5b54 100644
--- a/conda/artiq-kc705-nist_qc1/meta.yaml
+++ b/conda/artiq-kc705-nist_qc1/meta.yaml
@@ -12,8 +12,8 @@ build:
 
 requirements:
   build:
-    - migen 0.4
-    - misoc 0.4
+    - migen 0.5.dev
+    - misoc 0.5.dev
     - llvm-or1k
     - binutils-or1k-linux >=2.27
     - rust-core-or1k
diff --git a/conda/artiq-kc705-nist_qc2/meta.yaml b/conda/artiq-kc705-nist_qc2/meta.yaml
index 54e5d2579..9a0223a9b 100644
--- a/conda/artiq-kc705-nist_qc2/meta.yaml
+++ b/conda/artiq-kc705-nist_qc2/meta.yaml
@@ -12,8 +12,8 @@ build:
 
 requirements:
   build:
-    - migen 0.4
-    - misoc 0.4
+    - migen 0.5.dev
+    - misoc 0.5.dev
     - llvm-or1k
     - binutils-or1k-linux >=2.27
     - rust-core-or1k
diff --git a/conda/artiq-pipistrello-nist_qc1/meta.yaml b/conda/artiq-pipistrello-nist_qc1/meta.yaml
index a69497fff..06b1bc006 100644
--- a/conda/artiq-pipistrello-nist_qc1/meta.yaml
+++ b/conda/artiq-pipistrello-nist_qc1/meta.yaml
@@ -12,8 +12,8 @@ build:
 
 requirements:
   build:
-    - migen 0.4
-    - misoc 0.4
+    - migen 0.5.dev
+    - misoc 0.5.dev
     - llvm-or1k
     - binutils-or1k-linux >=2.27
     - rust-core-or1k