diff --git a/.github/workflows/ci-oldest-reqs.txt b/.github/workflows/ci-oldest-reqs.txt
index 4f1a166..a071dac 100644
--- a/.github/workflows/ci-oldest-reqs.txt
+++ b/.github/workflows/ci-oldest-reqs.txt
@@ -1,5 +1,6 @@
 bottleneck == 1.3.3
 freud-analysis == 2.5
+coverage[toml] == 6.2
 kneed == 0.8
 numpy == 1.21.0
 ruptures == 1.1.5