diff --git a/README.md b/README.md
index 6c3ade6f5..9cafe333d 100644
--- a/README.md
+++ b/README.md
@@ -72,7 +72,7 @@ To learn more about the docker pull rate limits and the open source software pro
| [Filtlong](https://hub.docker.com/r/staphb/filtlong)
[![docker pulls](https://badgen.net/docker/pulls/staphb/filtlong)](https://hub.docker.com/r/staphb/filtlong) |
| https://github.com/rrwick/filtlong |
| [FLASH](https://hub.docker.com/r/staphb/flash)
[![docker pulls](https://badgen.net/docker/pulls/staphb/flash)](https://hub.docker.com/r/staphb/flash) | | http://ccb.jhu.edu/software/FLASH |
| [Flye](https://hub.docker.com/r/staphb/flye)
[![docker pulls](https://badgen.net/docker/pulls/staphb/flye)](https://hub.docker.com/r/staphb/flye) | | https://github.com/fenderglass/Flye |
-| [Freyja](https://hub.docker.com/r/staphb/freyja)
[![docker pulls](https://badgen.net/docker/pulls/staphb/freyja)](https://hub.docker.com/r/staphb/freyja) | - 1.2
- 1.2.1
- 1.3.1
- 1.3.2
- 1.3.4
- 1.3.7
- 1.3.8
- 1.3.9
- 1.3.10
- 1.3.11
- 1.3.12
- 1.4.2
| https://github.com/andersen-lab/Freyja |
+| [Freyja](https://hub.docker.com/r/staphb/freyja)
[![docker pulls](https://badgen.net/docker/pulls/staphb/freyja)](https://hub.docker.com/r/staphb/freyja) | - 1.2
- 1.2.1
- 1.3.1
- 1.3.2
- 1.3.4
- 1.3.7
- 1.3.8
- 1.3.9
- 1.3.10
- 1.3.11
- 1.3.12
- 1.4.2
- [1.4.3](freyja/1.4.3/)
| https://github.com/andersen-lab/Freyja |
| [GAMBIT](https://hub.docker.com/r/staphb/gambit)
[![docker pulls](https://badgen.net/docker/pulls/staphb/gambit)](https://hub.docker.com/r/staphb/gambit) | | https://github.com/jlumpe/gambit |
| [GAMMA](https://hub.docker.com/r/staphb/gamma)
[![docker pulls](https://badgen.net/docker/pulls/staphb/gamma)](https://hub.docker.com/r/staphb/gamma) | | https://github.com/rastanton/GAMMA/ |
| [gfastats](https://hub.docker.com/r/staphb/gfastats)
[![docker pulls](https://badgen.net/docker/pulls/staphb/gfastats)](https://hub.docker.com/r/staphb/gfastats) | | https://github.com/vgl-hub/gfastats |
diff --git a/freyja/1.4.2_update/Dockerfile b/freyja/1.4.2_update/Dockerfile
new file mode 100644
index 000000000..b92a3a73b
--- /dev/null
+++ b/freyja/1.4.2_update/Dockerfile
@@ -0,0 +1,71 @@
+FROM mambaorg/micromamba:1.4.1 as app
+
+# Version arguments
+# ARG variables only persist during build time
+ARG FREYJA_SOFTWARE_VERSION="1.4.2"
+
+# build and run as root users since micromamba image has 'mambauser' set as the $USER
+USER root
+# set workdir to default for building; set to /data at the end
+WORKDIR /
+
+LABEL base.image="mambaorg/micromamba:1.4.1"
+LABEL dockerfile.version="1"
+LABEL software="Freyja"
+LABEL software.version=${FREYJA_SOFTWARE_VERSION}
+LABEL description="Freyja is a tool to recover relative lineage abundances from mixed SARS-CoV-2 samples from a sequencing dataset (BAM aligned to the Hu-1 reference)"
+LABEL website="https://github.com/andersen-lab/Freyja"
+LABEL license="https://github.com/andersen-lab/Freyja/blob/main/LICENSE"
+LABEL maintainer="Kevin Libuit"
+LABEL maintainer.email="kevin.libuit@theiagen.com"
+LABEL maintainer2="Curtis Kapsak"
+LABEL maintainer2.email="curtis.kapsak@theiagen.com"
+LABEL maintainer3="Erin Young"
+LABEL maintainer3.email="eriny@utah.gov"
+
+# install dependencies; cleanup apt garbage
+RUN apt-get update && apt-get install -y --no-install-recommends \
+ wget \
+ ca-certificates \
+ procps && \
+ apt-get autoclean && rm -rf /var/lib/apt/lists/*
+
+# Create Freyja conda environment called freyja-env from bioconda recipe
+# clean up conda garbage
+RUN micromamba create -n freyja-env -c conda-forge -c bioconda -c defaults freyja=${FREYJA_SOFTWARE_VERSION} && \
+ micromamba clean -a -y
+
+# set the environment, put new conda env in PATH by default
+ENV PATH="/opt/conda/envs/freyja-env/bin:/opt/conda/envs/env/bin:${PATH}" \
+ LC_ALL=C.UTF-8
+
+RUN freyja update
+
+# set working directory to /data
+WORKDIR /data
+
+# new base for testing
+FROM app as test
+
+# Grab test data from Freyja version 1.3.4
+RUN wget -O /data/Freyja_WWSC2.bam https://github.com/StaPH-B/docker-builds/blob/master/freyja/1.3.4/tests/Freyja_WWSC2.bam?raw=true -O /data/Freyja_WWSC2.bam && \
+ wget -P /data https://raw.githubusercontent.com/StaPH-B/docker-builds/master/freyja/1.3.4/tests/Freyja_depths.tsv && \
+ wget -P /data https://raw.githubusercontent.com/StaPH-B/docker-builds/master/freyja/1.3.4/tests/Freyja_variants.tsv && \
+ wget -P /data https://raw.githubusercontent.com/StaPH-B/docker-builds/master/freyja/1.3.4/tests/nCoV-2019.reference.fasta
+
+# so that mamba/conda env is active when running below commands
+ENV ENV_NAME="freyja-env"
+ARG MAMBA_DOCKERFILE_ACTIVATE=1
+
+# Run Freyja
+RUN freyja variants /data/Freyja_WWSC2.bam --variants /data/test_variants.tsv --depths /data/test_depths.tsv --ref /data/nCoV-2019.reference.fasta && \
+ freyja demix /data/test_variants.tsv /data/test_depths.tsv --output /data/test_demix.tsv
+
+# Check validity of outputs
+RUN head /data/test_variants.tsv && \
+ head /data/test_depths.tsv && \
+ head /data/test_demix.tsv && \
+ grep "Omicron" /data/test_demix.tsv
+
+# test new Freyja demix version option
+RUN freyja demix --version && freyja --version
\ No newline at end of file
diff --git a/freyja/1.4.2_update/README.md b/freyja/1.4.2_update/README.md
new file mode 100644
index 000000000..5b97378d9
--- /dev/null
+++ b/freyja/1.4.2_update/README.md
@@ -0,0 +1,16 @@
+# freyja container
+
+Main tool & documentation: [freyja](https://github.com/andersen-lab/Freyja)
+
+Freyja is a tool to recover relative lineage abundances from mixed SARS-CoV-2 samples from a sequencing dataset (BAM aligned to the Hu-1 reference). The method uses lineage-determining mutational "barcodes" derived from the UShER global phylogenetic tree as a basis set to solve the constrained (unit sum, non-negative) de-mixing problem.
+
+## Example Usage
+
+```bash
+# run freyja variants to call variants from an aligned SC2 bam file
+freyja variants [bamfile] --variants [variant outfile name] --depths [depths outfile name] --ref [reference.fa]
+# run freyja demix to identify lineages based on called variants
+freyja demix [variants-file] [depth-file] --output [output-file]
+```
+
+Warning: `freyja update` does not work under all conditions.
\ No newline at end of file
diff --git a/freyja/1.4.3/Dockerfile b/freyja/1.4.3/Dockerfile
new file mode 100644
index 000000000..8087604e9
--- /dev/null
+++ b/freyja/1.4.3/Dockerfile
@@ -0,0 +1,74 @@
+FROM mambaorg/micromamba:1.4.1 as app
+
+# Version arguments
+# ARG variables only persist during build time
+ARG FREYJA_SOFTWARE_VERSION="1.4.3"
+
+# build and run as root users since micromamba image has 'mambauser' set as the $USER
+USER root
+# set workdir to default for building; set to /data at the end
+WORKDIR /
+
+LABEL base.image="mambaorg/micromamba:1.4.1"
+LABEL dockerfile.version="1"
+LABEL software="Freyja"
+LABEL software.version=${FREYJA_SOFTWARE_VERSION}
+LABEL description="Freyja is a tool to recover relative lineage abundances from mixed SARS-CoV-2 samples from a sequencing dataset (BAM aligned to the Hu-1 reference)"
+LABEL website="https://github.com/andersen-lab/Freyja"
+LABEL license="https://github.com/andersen-lab/Freyja/blob/main/LICENSE"
+LABEL maintainer="Kevin Libuit"
+LABEL maintainer.email="kevin.libuit@theiagen.com"
+LABEL maintainer2="Curtis Kapsak"
+LABEL maintainer2.email="curtis.kapsak@theiagen.com"
+LABEL maintainer3="Erin Young"
+LABEL maintainer3.email="eriny@utah.gov"
+
+# install dependencies; cleanup apt garbage
+RUN apt-get update && apt-get install -y --no-install-recommends \
+ wget \
+ ca-certificates \
+ procps && \
+ apt-get autoclean && rm -rf /var/lib/apt/lists/*
+
+# Create Freyja conda environment called freyja-env from bioconda recipe
+# clean up conda garbage
+RUN micromamba create -n freyja-env -c conda-forge -c bioconda -c defaults freyja=${FREYJA_SOFTWARE_VERSION} && \
+ micromamba clean -a -y
+
+# set the environment, put new conda env in PATH by default
+ENV PATH="/opt/conda/envs/freyja-env/bin:/opt/conda/envs/env/bin:${PATH}" \
+ LC_ALL=C.UTF-8
+
+RUN freyja update
+
+# set working directory to /data
+WORKDIR /data
+
+# default command is to pull up help options
+CMD [ "freyja", "--help" ]
+
+# new base for testing
+FROM app as test
+
+# Grab test data from Freyja version 1.3.4
+RUN wget -O /data/Freyja_WWSC2.bam https://github.com/StaPH-B/docker-builds/blob/master/freyja/1.3.4/tests/Freyja_WWSC2.bam?raw=true -O /data/Freyja_WWSC2.bam && \
+ wget -P /data https://raw.githubusercontent.com/StaPH-B/docker-builds/master/freyja/1.3.4/tests/Freyja_depths.tsv && \
+ wget -P /data https://raw.githubusercontent.com/StaPH-B/docker-builds/master/freyja/1.3.4/tests/Freyja_variants.tsv && \
+ wget -P /data https://raw.githubusercontent.com/StaPH-B/docker-builds/master/freyja/1.3.4/tests/nCoV-2019.reference.fasta
+
+# so that mamba/conda env is active when running below commands
+ENV ENV_NAME="freyja-env"
+ARG MAMBA_DOCKERFILE_ACTIVATE=1
+
+# Run Freyja
+RUN freyja variants /data/Freyja_WWSC2.bam --variants /data/test_variants.tsv --depths /data/test_depths.tsv --ref /data/nCoV-2019.reference.fasta && \
+ freyja demix /data/test_variants.tsv /data/test_depths.tsv --output /data/test_demix.tsv
+
+# Check validity of outputs
+RUN head /data/test_variants.tsv && \
+ head /data/test_depths.tsv && \
+ head /data/test_demix.tsv && \
+ grep "Omicron" /data/test_demix.tsv
+
+# test new Freyja demix version option
+RUN freyja demix --version && freyja --version
diff --git a/freyja/1.4.3/README.md b/freyja/1.4.3/README.md
new file mode 100644
index 000000000..1cc676daf
--- /dev/null
+++ b/freyja/1.4.3/README.md
@@ -0,0 +1,16 @@
+# freyja container
+
+Main tool & documentation: [freyja](https://github.com/andersen-lab/Freyja)
+
+Freyja is a tool to recover relative lineage abundances from mixed SARS-CoV-2 samples from a sequencing dataset (BAM aligned to the Hu-1 reference). The method uses lineage-determining mutational "barcodes" derived from the UShER global phylogenetic tree as a basis set to solve the constrained (unit sum, non-negative) de-mixing problem.
+
+## Example Usage
+
+```bash
+# run freyja variants to call variants from an aligned SC2 bam file
+freyja variants [bamfile] --variants [variant outfile name] --depths [depths outfile name] --ref [reference.fa]
+# run freyja demix to identify lineages based on called variants
+freyja demix [variants-file] [depth-file] --output [output-file]
+```
+
+Warning: `freyja update` does not work under all conditions.