diff --git a/docs/.gitlab-ci.yaml b/docs/.gitlab-ci.yaml
index 02fa9667882f59023b29df77540a18d3a281e01a..aab33cd6859fb823f88db036a8272f1602b99b4a 100644
--- a/docs/.gitlab-ci.yaml
+++ b/docs/.gitlab-ci.yaml
@@ -21,7 +21,7 @@ build-docs:
   variables:
     CARGO_HOME: $CI_PROJECT_DIR/cargo
     # renovate: datasource=github-releases depName=rust-lang/mdBook
-    MDBOOK_VERSION: v0.4.36
+    MDBOOK_VERSION: v0.4.37
   before_script:
     - export PATH="$PATH:$CARGO_HOME/bin"
     - mdbook --version | grep "$MDBOOK_VERSION" || cargo install --version "${MDBOOK_VERSION//v}" mdbook
diff --git a/images/tools/Earthfile b/images/tools/Earthfile
index 150be6beac6077525714e450b00fe210d89d887e..a36d178d516d0b432f545d88039c6780f415c5a9 100644
--- a/images/tools/Earthfile
+++ b/images/tools/Earthfile
@@ -139,7 +139,7 @@ mdbook:
     FROM ../mirror+fedora
 
     # renovate: datasource=github-releases depName=rust-lang/mdBook
-    ARG MDBOOK_VERSION=v0.4.36
+    ARG MDBOOK_VERSION=v0.4.37
     ENV MDBOOK_VERSION=${MDBOOK_VERSION}
 
     RUN curl -L "https://github.com/rust-lang/mdBook/releases/download/${MDBOOK_VERSION}/mdbook-${MDBOOK_VERSION}-x86_64-unknown-linux-gnu.tar.gz" | tar xvzf - mdbook \