diff --git a/conda/environments/all_cuda-118_arch-x86_64.yaml b/conda/environments/all_cuda-118_arch-x86_64.yaml
index 3fffb3dc7..56b85f7f2 100644
--- a/conda/environments/all_cuda-118_arch-x86_64.yaml
+++ b/conda/environments/all_cuda-118_arch-x86_64.yaml
@@ -37,7 +37,7 @@ dependencies:
 - scikit-build-core >=0.10.0
 - sphinx-copybutton
 - sphinx-markdown-tables
-- sphinx<=8.2.0
+- sphinx<8.2.0
 - sphinx_rtd_theme
 - sysroot_linux-64==2.28
 name: all_cuda-118_arch-x86_64
diff --git a/conda/environments/all_cuda-128_arch-x86_64.yaml b/conda/environments/all_cuda-128_arch-x86_64.yaml
index 807456000..fbc1e28da 100644
--- a/conda/environments/all_cuda-128_arch-x86_64.yaml
+++ b/conda/environments/all_cuda-128_arch-x86_64.yaml
@@ -36,7 +36,7 @@ dependencies:
 - scikit-build-core >=0.10.0
 - sphinx-copybutton
 - sphinx-markdown-tables
-- sphinx<=8.2.0
+- sphinx<8.2.0
 - sphinx_rtd_theme
 - sysroot_linux-64==2.28
 name: all_cuda-128_arch-x86_64