diff --git a/bitnami/ruby/2.5/debian-9/Dockerfile b/bitnami/ruby/2.5/debian-9/Dockerfile
index a9b89f1715bf..1c7d4e0fe3bd 100644
--- a/bitnami/ruby/2.5/debian-9/Dockerfile
+++ b/bitnami/ruby/2.5/debian-9/Dockerfile
@@ -3,16 +3,16 @@ LABEL maintainer "Bitnami <containers@bitnami.com>"
 
 # Install required system packages and dependencies
 RUN install_packages build-essential ca-certificates curl ghostscript git imagemagick libc6 libgmp-dev libncurses5 libreadline7 libsqlite3-dev libssl-dev libssl1.0.2 libtinfo5 libxml2-dev libxslt1-dev pkg-config unzip wget zlib1g zlib1g-dev
-RUN wget -nc -P /tmp/bitnami/pkg/cache/ https://downloads.bitnami.com/files/stacksmith/ruby-2.5.4-0-linux-amd64-debian-9.tar.gz && \
-    echo "e905cf1f9a296d12ac03c73e3c527be63e64946b67f47bf62efda0913e1eef87  /tmp/bitnami/pkg/cache/ruby-2.5.4-0-linux-amd64-debian-9.tar.gz" | sha256sum -c - && \
-    tar -zxf /tmp/bitnami/pkg/cache/ruby-2.5.4-0-linux-amd64-debian-9.tar.gz -P --transform 's|^[^/]*/files|/opt/bitnami|' --wildcards '*/files' && \
-    rm -rf /tmp/bitnami/pkg/cache/ruby-2.5.4-0-linux-amd64-debian-9.tar.gz
+RUN wget -nc -P /tmp/bitnami/pkg/cache/ https://downloads.bitnami.com/files/stacksmith/ruby-2.5.5-0-linux-amd64-debian-9.tar.gz && \
+    echo "7f676dbe187bb037fed4fd25da35ac68b34621e629ea5b80ee82afbccfbe9c6f  /tmp/bitnami/pkg/cache/ruby-2.5.5-0-linux-amd64-debian-9.tar.gz" | sha256sum -c - && \
+    tar -zxf /tmp/bitnami/pkg/cache/ruby-2.5.5-0-linux-amd64-debian-9.tar.gz -P --transform 's|^[^/]*/files|/opt/bitnami|' --wildcards '*/files' && \
+    rm -rf /tmp/bitnami/pkg/cache/ruby-2.5.5-0-linux-amd64-debian-9.tar.gz
 RUN sed -i 's/^PASS_MAX_DAYS.*/PASS_MAX_DAYS    90/' /etc/login.defs && \
     sed -i 's/^PASS_MIN_DAYS.*/PASS_MIN_DAYS    0/' /etc/login.defs && \
     sed -i 's/sha512/sha512 minlen=8/' /etc/pam.d/common-password
 
 ENV BITNAMI_APP_NAME="ruby" \
-    BITNAMI_IMAGE_VERSION="2.5.4-debian-9-r2" \
+    BITNAMI_IMAGE_VERSION="2.5.5-debian-9-r0" \
     PATH="/opt/bitnami/ruby/bin:$PATH"
 
 EXPOSE 3000