diff --git a/.test-conda-env-py3.yml b/.test-conda-env-py3.yml
index 1b7ee47cce442dd8c94de3af8a623bed55ad37f7..89c055eb3b6bd2d9dc4a1a1a460f4b95791f7561 100644
--- a/.test-conda-env-py3.yml
+++ b/.test-conda-env-py3.yml
@@ -11,8 +11,8 @@ dependencies:
 - islpy
 - pyopencl
 - python=3.7
-- symengine=0.4.0
-- python-symengine=0.4.0
+- symengine=0.5.0
+- python-symengine=0.5.0
 
 # things not in here: loopy boxtree pymbolic pyfmmlib
 # (see .test-conda-env-py3-requirements.txt)
\ No newline at end of file