diff --git a/backend/go.mod b/backend/go.mod
index fb4a525..3e4da03 100644
--- a/backend/go.mod
+++ b/backend/go.mod
@@ -15,7 +15,7 @@ require (
 	github.com/joho/godotenv v1.5.1
 	github.com/prometheus/client_golang v1.23.2
 	github.com/redis/go-redis/v9 v9.17.3
-	github.com/slack-go/slack v0.17.3
+	github.com/slack-go/slack v0.27.0
 	github.com/spf13/cobra v1.10.2
 	github.com/stretchr/testify v1.11.1
 	golang.org/x/crypto v0.45.0
diff --git a/backend/go.sum b/backend/go.sum
index b244d50..6708b62 100644
--- a/backend/go.sum
+++ b/backend/go.sum
@@ -166,8 +166,8 @@ github.com/rogpeppe/go-internal v1.14.1/go.mod h1:MaRKkUm5W0goXpeCfT7UZI6fk/L7L7
 github.com/russellhaering/goxmldsig v1.6.0 h1:8fdWXEPh2k/NZNQBPFNoVfS3JmzS4ZprY/sAOpKQLks=
 github.com/russellhaering/goxmldsig v1.6.0/go.mod h1:TrnaquDcYxWXfJrOjeMBTX4mLBeYAqaHEyUeWPxZlBM=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
-github.com/slack-go/slack v0.17.3 h1:zV5qO3Q+WJAQ/XwbGfNFrRMaJ5T/naqaonyPV/1TP4g=
-github.com/slack-go/slack v0.17.3/go.mod h1:X+UqOufi3LYQHDnMG1vxf0J8asC6+WllXrVrhl8/Prk=
+github.com/slack-go/slack v0.27.0 h1:VWOpUzOK6UAPCCQlFxl79jhv8a/b+GOSJMnWziDJ8B8=
+github.com/slack-go/slack v0.27.0/go.mod h1:UEe+jmo9WLlwHB04qsOrTDvqM7Aa4rQL3O5wF3n0hx4=
 github.com/spf13/cobra v1.10.2 h1:DMTTonx5m65Ic0GOoRY2c16WCbHxOOw6xxezuLaBpcU=
 github.com/spf13/cobra v1.10.2/go.mod h1:7C1pvHqHw5A4vrJfjNwvOdzYu0Gml16OCs2GRiTUUS4=
 github.com/spf13/pflag v1.0.9 h1:9exaQaMOCwffKiiiYk6/BndUBv+iRViNW+4lEMi0PvY=