diff --git a/Dockerfile b/Dockerfile
index 5dc0b68..46a9dc0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,27 +1,26 @@
 FROM alpine:3.15.5
 
-ARG UNBOUND_VERSION=1.16.2
+ARG UNBOUND_VERSION=1.17.0
 
 # Install dependencies and build unbound, clean up after
-RUN apk --update add --no-cache alpine-sdk dns-root-hints expat-dev git openssl-dev && \
+RUN apk --update add --no-cache alpine-sdk bison dns-root-hints expat-dev flex git openssl-dev && \
     # Clone tag and build unbound source (https://github.com/NLnetLabs/unbound)
     git clone --depth 1 --branch "release-${UNBOUND_VERSION}" https://github.com/NLnetLabs/unbound.git /tmp/unbound && \
     cd /tmp/unbound && \
     ./configure && \
     make && \
     make install && \
-    # Cleanup build tools
+    # Clean up build dependencies
     make clean && \
+    cd /srv && \
     rm -rf /tmp/* && \
-    apk del alpine-sdk expat-dev git openssl-dev
+    apk del alpine-sdk bison expat-dev flex git openssl-dev
 
 # Prepare image
 COPY entrypoint.sh /
 COPY healthcheck.sh /srv/
 
 ## Prepare unbound
-RUN addgroup -S unbound
-RUN adduser -S -G unbound unbound
 RUN mkdir -p /srv/unbound/conf
 COPY unbound.conf /srv/unbound/unbound.conf
 
diff --git a/changelog.md b/changelog.md
index a3883b2..a6f1beb 100644
--- a/changelog.md
+++ b/changelog.md
@@ -3,6 +3,9 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+## [1.17.0]
+- Updated Unbound to version `1.17.0`
+
 ## [1.16.2]
 - Updated Unbound to version `1.16.2`
 - Added local healthcheck record and new healthcheck script