diff --git a/python-statistics/README.md b/python-statistics/README.md
index 143a724ca1..1e3ff4e45d 100644
--- a/python-statistics/README.md
+++ b/python-statistics/README.md
@@ -11,10 +11,10 @@ Create and activate a virtual environment, then install the requirements:
 ```bash
 $ python -m venv venv
 $ source venv/bin/activate
-(venv) $ python -m pip install -r requirements.txt -c constraints.txt
+(venv) $ python -m pip install -r requirements.txt
 ```
 
-The tutorial's examples were verified against the versions pinned in `constraints.txt`. Newer releases will usually work too, but NumPy 2 changed how scalars are displayed, so output from older versions won't match the tutorial exactly.
+`requirements.txt` pins the versions the tutorial's examples were verified against. Newer releases will usually work too, but NumPy 2 changed how scalars are displayed, so output from older versions won't match the tutorial exactly.
 
 ## Usage
 
diff --git a/python-statistics/constraints.txt b/python-statistics/constraints.txt
deleted file mode 100644
index 9a278490b4..0000000000
--- a/python-statistics/constraints.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-numpy==2.5.3
-scipy==1.18.1
-pandas==3.0.5
-matplotlib==3.11.2
diff --git a/python-statistics/requirements.txt b/python-statistics/requirements.txt
index 7bd7c445cc..9a278490b4 100644
--- a/python-statistics/requirements.txt
+++ b/python-statistics/requirements.txt
@@ -1,4 +1,4 @@
-numpy
-scipy
-pandas
-matplotlib
+numpy==2.5.3
+scipy==1.18.1
+pandas==3.0.5
+matplotlib==3.11.2