diff --git a/pyproject.toml b/pyproject.toml
index fe07f87d..d1cba809 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -49,7 +49,7 @@ exclude = []  # exclude packages matching these glob patterns (empty by default)
 namespaces = false  # to disable scanning PEP 420 namespaces (true by default)
 
 [tool.setuptools.dynamic]
-dependencies = {file = ["requirements/run.txt"]}
+dependencies = {file = ["requirements/pip.txt"]}
 
 [tool.black]
 line-length = 115
diff --git a/requirements/conda.txt b/requirements/conda.txt
new file mode 100644
index 00000000..fc26856d
--- /dev/null
+++ b/requirements/conda.txt
@@ -0,0 +1,5 @@
+scipy
+numpy
+matplotlib-base
+diffpy.structure
+pyobjcryst
diff --git a/requirements/pip.txt b/requirements/pip.txt
index e69de29b..3a147642 100644
--- a/requirements/pip.txt
+++ b/requirements/pip.txt
@@ -0,0 +1,5 @@
+scipy
+numpy
+matplotlib
+diffpy.structure
+pyobjcryst
diff --git a/requirements/run-ext.txt b/requirements/run-ext.txt
deleted file mode 100644
index 9cc306b0..00000000
--- a/requirements/run-ext.txt
+++ /dev/null
@@ -1 +0,0 @@
-diffpy.structure
diff --git a/requirements/run.txt b/requirements/run.txt
deleted file mode 100644
index 59149ac8..00000000
--- a/requirements/run.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-scipy
-numpy
-matplotlib