diff --git a/easybuild/easyconfigs/l/loompy/loompy-3.0.7-foss-2023a.eb b/easybuild/easyconfigs/l/loompy/loompy-3.0.7-foss-2023a.eb
index 486a2e560c31..d953820f9d4c 100644
--- a/easybuild/easyconfigs/l/loompy/loompy-3.0.7-foss-2023a.eb
+++ b/easybuild/easyconfigs/l/loompy/loompy-3.0.7-foss-2023a.eb
@@ -8,7 +8,7 @@ description = "Python implementation of the Loom file format, an efficient file
 
 toolchain = {'name': 'foss', 'version': '2023a'}
 
-builddependencies = [('poetry', '1.7.1'), ]
+builddependencies = [('poetry', '1.5.1')]
 
 dependencies = [
     ('Python', '3.11.3'),