diff --git a/Dockerfile b/Dockerfile
index 232e214..6ecde1b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,13 +2,13 @@ FROM debian:bullseye
 LABEL maintainer="<alik@robarts.ca>"
 
 # dcm2niix version
-ENV DCM2NIIXTAG v1.0.20210317
+ENV DCM2NIIXTAG v1.0.20220720
 
 #heudiconv version:
-ENV HEUDICONVTAG v0.10.0
+ENV HEUDICONVTAG v0.11.3
 
 #bids validator version:
-ENV BIDSTAG 1.9.3
+ENV BIDSTAG 1.9.7
 
 #pydeface version:
 ENV PYDEFACETAG v1.1.0
@@ -18,12 +18,12 @@ ARG DEBIAN_FRONTEND="noninteractive"
 # install dcm2niix
 RUN apt-get update -qq \
     && apt-get install -y -q --no-install-recommends \
-        apt-utils=2.2.4 \
-        ca-certificates=20210119 \
-        locales=2.31-13+deb11u3 \
-        pigz=2.6-1 \
-        unzip=6.0-26 \
-        wget=1.21-1+deb11u1 \
+        apt-utils \
+        ca-certificates \
+        locales \
+        pigz \
+        unzip \
+        wget \
     && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
     && mkdir /opt/dcm2niix \
     && wget -q -O /opt/dcm2niix/dcm2niix.zip https://github.com/rordenlab/dcm2niix/releases/download/${DCM2NIIXTAG}/dcm2niix_lnx.zip \
@@ -44,15 +44,15 @@ RUN apt-get update -qq \
 # install BIDS Validator
 RUN apt-get update -qq \
     && apt-get install -y -q --no-install-recommends \
-        nodejs=12.22.5~dfsg-2~11u1 \
-        npm=7.5.2+ds-2 \
+        nodejs \
+        npm \
     && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 RUN npm install -g bids-validator@${BIDSTAG}
 
 # install GNU parallel
 RUN apt-get update -qq \
     && apt-get install -y -q --no-install-recommends \
-        parallel=20161222-1.1 \
+        parallel \
     && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
     && echo "en_US.UTF-8 UTF-8" >> /etc/locale.gen \
     && echo "LANG=en_US.UTF-8" > /etc/locale.conf \
@@ -62,8 +62,8 @@ RUN apt-get update -qq \
 # install FSL flirt and fslorient
 RUN apt-get update -qq \
     && apt-get install -y -q --no-install-recommends \
-        libxml2-dev=2.9.10+dfsg-6.7+deb11u1 \
-        libopenblas-dev=0.3.13+ds-3 \
+        libxml2-dev \
+        libopenblas-dev \
     && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 RUN pip install --no-cache-dir pytest===3.6.0 networkx==2.0
 ENV FSLDIR /opt/fsl
@@ -77,8 +77,8 @@ ENV PATH $FSLDIR/bin:$PATH
 # install pydeface
 RUN apt-get update -qq \
     && apt-get install -y -q --no-install-recommends \
-        git=1:2.30.2-1 \
-        python3-setuptools=52.0.0-4 \
+        git \
+        python3-setuptools \
     && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
     && git clone https://github.com/poldracklab/pydeface /src/pydeface \
     && git -C /src/pydeface checkout ${PYDEFACETAG}