diff --git a/.test-conda-env-py3.yml b/.test-conda-env-py3.yml
index 208f46e08e143d69f8d6e3155ceba553e57f7678..d5f75d5393c74593a0839179c98f10e77354f706 100644
--- a/.test-conda-env-py3.yml
+++ b/.test-conda-env-py3.yml
@@ -7,7 +7,10 @@ dependencies:
 - git
 - numpy
 - sympy
-- pocl
+
+# https://github.com/pocl/pocl/issues/955
+- pocl<=1.6
+
 - pocl-cuda
 - islpy
 - pyopencl