diff --git a/Containerfile.multiarch b/Containerfile.multiarch
index 1344a88..2c5c4cc 100644
--- a/Containerfile.multiarch
+++ b/Containerfile.multiarch
@@ -37,7 +37,7 @@ ENV PIPX_HOME=/opt/pipx
 ENV PIPX_BIN_DIR=/usr/local/bin
 
 RUN apk --update add --no-cache python3 pipx curl make tar git bash && \
-    apk --no-cache upgrade libcrypto3 libssl3 && \
+    apk --no-cache upgrade libcrypto3 libssl3 py3-yaml && \
     curl -SsfL -o /usr/local/bin/gomplate "https://github.com/hairyhenderson/gomplate/releases/download/${GOMPLATE_VERSION}/gomplate_${TARGETOS}-${TARGETARCH}${TARGETVARIANT}" && \
     curl -SsfL -o /usr/local/bin/url-parser "https://github.com/thegeeklab/url-parser/releases/download/${URL_PARSER_VERSION}/url-parser-${TARGETOS}-${TARGETARCH}${TARGETVARIANT//v/-}" && \
     curl -SsfL -o /usr/local/bin/openapi2jsonschema "https://raw.githubusercontent.com/yannh/kubeconform/${KUBECONFORM_VERSION}/scripts/openapi2jsonschema.py" && \