diff --git a/py-polars/docs/source/reference/series/computation.rst b/py-polars/docs/source/reference/series/computation.rst
index 5ab80238a54d..8cdb8fe152fa 100644
--- a/py-polars/docs/source/reference/series/computation.rst
+++ b/py-polars/docs/source/reference/series/computation.rst
@@ -15,6 +15,7 @@ Computation
     Series.arctanh
     Series.arg_true
     Series.arg_unique
+    Series.approx_n_unique
     Series.bitwise_count_ones
     Series.bitwise_count_zeros
     Series.bitwise_leading_ones
@@ -42,10 +43,12 @@ Computation
     Series.ewm_std
     Series.ewm_var
     Series.exp
+    Series.first
     Series.hash
     Series.hist
     Series.is_between
     Series.kurtosis
+    Series.last
     Series.log
     Series.log10
     Series.log1p