diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index b066061..1b19039 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -42,7 +42,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
       - name: Set up Go
         uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5
diff --git a/mise.toml b/mise.toml
index f6a62b8..b912757 100644
--- a/mise.toml
+++ b/mise.toml
@@ -2,7 +2,7 @@
 go = "1.25.4"
 golangci-lint = "2.6.2"
 goreleaser = "v2.9.0"
-mdbook = "v0.4.52" # renovate: datasource=github-releases depName=rust-lang/mdbook
+mdbook = "v0.5.0" # renovate: datasource=github-releases depName=rust-lang/mdbook
 ko = "v0.18.0" # renovate: datasource=github-releases depName=ko-build/ko
 
 [settings]