diff --git a/artiq-fast/conda-windows/llvmlite-artiq.nix b/artiq-fast/conda-windows/llvmlite-artiq.nix
index 51eaafc..606830a 100644
--- a/artiq-fast/conda-windows/llvmlite-artiq.nix
+++ b/artiq-fast/conda-windows/llvmlite-artiq.nix
@@ -37,7 +37,7 @@ let
           - cmake
           - llvm-or1k
         run:
-          - python<3.8
+          - python<3.9
       EOF
 
       cat > bld.bat << EOF
diff --git a/artiq-fast/conda/llvmlite-artiq.nix b/artiq-fast/conda/llvmlite-artiq.nix
index a6aa4ed..dabed08 100644
--- a/artiq-fast/conda/llvmlite-artiq.nix
+++ b/artiq-fast/conda/llvmlite-artiq.nix
@@ -25,7 +25,7 @@ let
     # that they are not there if they have been installed from files.
     requirements:
       run:
-        - python<3.8
+        - python<3.9
         - ncurses [linux]
     EOF