diff --git a/.github/actions/pr_notifier/requirements.txt b/.github/actions/pr_notifier/requirements.txt
index b3f6b3477e46a..6f119038f87d3 100644
--- a/.github/actions/pr_notifier/requirements.txt
+++ b/.github/actions/pr_notifier/requirements.txt
@@ -111,9 +111,9 @@ six==1.16.0 \
     --hash=sha256:1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926 \
     --hash=sha256:8abb2f1d86890a2dfb989f9a77cfcfd3e47c2a354b01111771326f8aa26e0254
     # via pynacl
-slack-sdk==3.15.2 \
-    --hash=sha256:128f3bb0b5b91454a3d5f140a61f3db370a0e1b50ffe0a8d9e9ebe0e894faed7 \
-    --hash=sha256:e1fa26786169176e707676decc287fd9d3d547bbc43c0a1a4f99eb373b07da94
+slack-sdk==3.18.1 \
+    --hash=sha256:63ce5e6253a31873d6c921c9feaa842a93a2f56e6e009cb7daf406f4bc4df798 \
+    --hash=sha256:a25d3d2bf0bf605d54d764d4a463fe7c0659ee24c13d75653e2bec247bd5998b
     # via -r requirements.in
 urllib3==1.26.6 \
     --hash=sha256:39fb8672126159acb139a7718dd10806104dec1e2f0f6c88aab05d17df10c8d4 \