diff --git a/.github/workflows/build-binary.yml b/.github/workflows/build-binary.yml
index 35deaa64a..7adf61866 100644
--- a/.github/workflows/build-binary.yml
+++ b/.github/workflows/build-binary.yml
@@ -25,12 +25,15 @@ jobs:
           pip install --no-deps -r requirements.txt
           pip install -r requirements.txt --no-cache-dir
 
-      - name: Build Binary (Linux/Mac)
-        if: runner.os != 'Windows'
-        run: pyinstaller --onedir --contents-directory "." core.py --dist ./dist/output/${{ inputs.name }} --collect-submodules pyreadstat --add-data=$pythonLocation/lib/python3.12/site-packages/xmlschema/schemas:xmlschema/schemas --add-data=resources/cache:resources/cache --add-data=resources/templates:resources/templates --add-data=resources/schema:resources/schema --add-data=tests/resources/datasets:tests/resources/datasets --add-data=resources/jsonata:resources/jsonata
+      - name: Build Binary (Linux)
+        if: runner.os == 'Linux'
+        run: pyinstaller --onedir --contents-directory "." core.py --icon=resources/assets/CORE_logo_sm.ico --dist ./dist/output/${{ inputs.name }} --collect-submodules pyreadstat --add-data=$pythonLocation/lib/python3.12/site-packages/xmlschema/schemas:xmlschema/schemas --add-data=resources/cache:resources/cache --add-data=resources/templates:resources/templates --add-data=resources/schema:resources/schema --add-data=tests/resources/datasets:tests/resources/datasets --add-data=resources/jsonata:resources/jsonata
+      - name: Build Binary (Mac)
+        if: runner.os == 'macOS'
+        run: pyinstaller --onedir --contents-directory "." core.py --icon=resources/assets/CORE_logo_sm.icns --dist ./dist/output/${{ inputs.name }} --collect-submodules pyreadstat --add-data=$pythonLocation/lib/python3.12/site-packages/xmlschema/schemas:xmlschema/schemas --add-data=resources/cache:resources/cache --add-data=resources/templates:resources/templates --add-data=resources/schema:resources/schema --add-data=tests/resources/datasets:tests/resources/datasets --add-data=resources/jsonata:resources/jsonata
       - name: Build Binary (Windows)
         if: runner.os == 'Windows'
-        run: pyinstaller --onedir --contents-directory "." core.py --dist ./dist/output/${{ inputs.name }} --collect-submodules pyreadstat --add-data="$env:pythonLocation\Lib\site-packages\xmlschema\schemas;xmlschema/schemas" --hidden-import numpy --hidden-import numpy.core._methods --hidden-import numpy.lib.format --add-data="resources/cache;resources/cache" --add-data="resources/templates;resources/templates" --add-data="resources/schema;resources/schema"  --add-data="tests/resources/datasets;tests/resources/datasets" --add-data="resources/jsonata;resources/jsonata"
+        run: pyinstaller --onedir --contents-directory "." core.py --icon=resources/assets/CORE_logo_sm.ico --dist ./dist/output/${{ inputs.name }} --collect-submodules pyreadstat --add-data="$env:pythonLocation\Lib\site-packages\xmlschema\schemas;xmlschema/schemas" --hidden-import numpy --hidden-import numpy.core._methods --hidden-import numpy.lib.format --add-data="resources/cache;resources/cache" --add-data="resources/templates;resources/templates" --add-data="resources/schema;resources/schema"  --add-data="tests/resources/datasets;tests/resources/datasets" --add-data="resources/jsonata;resources/jsonata"
       - name: Archive Binary
         uses: actions/upload-artifact@v4
         with:
diff --git a/.github/workflows/build_version.yml b/.github/workflows/build_version.yml
index 1f253a445..1066e9001 100644
--- a/.github/workflows/build_version.yml
+++ b/.github/workflows/build_version.yml
@@ -32,6 +32,7 @@ jobs:
           pyinstaller --onedir \
             --contents-directory "." \
             core.py \
+            --icon=resources/assets/CORE_logo_sm.ico \
             --dist ./dist/output/core-ubuntu-22.04 \
             --collect-submodules pyreadstat \
             --add-data="resources/cache:resources/cache" \
@@ -81,7 +82,7 @@ jobs:
 #         run: |
 #           python core.py update-cache
 #       - name: Build Binary (Windows)
-#         run: pyinstaller --onedir --contents-directory "." core.py --dist ./dist/output/core-windows --collect-submodules pyreadstat --add-data="resources/cache;resources/cache" --add-data="resources/templates;resources/templates" --add-data="resources/schema;resources/schema" --add-data="tests/resources/datasets;tests/resources/datasets" --add-data="resources/jsonata;resources/jsonata"
+#         run: pyinstaller --onedir --contents-directory "." core.py --icon=resources/assets/CORE_logo_sm.ico --dist ./dist/output/core-windows --collect-submodules pyreadstat --add-data="resources/cache;resources/cache" --add-data="resources/templates;resources/templates" --add-data="resources/schema;resources/schema" --add-data="tests/resources/datasets;tests/resources/datasets" --add-data="resources/jsonata;resources/jsonata"
 #       - name: Prepare executable (Windows)
 #         shell: pwsh
 #         run: |
@@ -129,6 +130,7 @@ jobs:
 #           pyinstaller --onedir \
 #             --contents-directory "." \
 #             core.py \
+#             --icon=resources/assets/CORE_logo_sm.icns \
 #             --dist ./dist/output/core-macos \
 #             --collect-submodules pyreadstat \
 #             --add-data="resources/cache:resources/cache" \
diff --git a/Dockerfile.build b/Dockerfile.build
index 257fef419..a809a4e47 100644
--- a/Dockerfile.build
+++ b/Dockerfile.build
@@ -27,6 +27,7 @@ RUN python3.12 -m pip install --upgrade pip && \
 RUN pyinstaller --onedir \
     --contents-directory "." \
     core.py \
+    --icon=resources/assets/CORE_logo_sm.ico \
     --dist ./dist/output/core-ubuntu-22.04 \
     --collect-submodules pyreadstat \
     --add-data="resources/cache:resources/cache" \
diff --git a/README.md b/README.md
index 8dcc80d60..98f538d6d 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-[![](https://www.cdisc.org/themes/custom/cdiscd8/logo.svg)](https://www.cdisc.org)
+[![](./resources/assets/CORE_logo_sm.png)](https://www.cdisc.org)
 
 [![](https://img.shields.io/badge/python-3.12-blue.svg)](https://www.python.org/downloads/release/python-3120) [![](https://img.shields.io/pypi/v/cdisc-rules-engine.svg)](https://pypi.org/project/cdisc-rules-engine) [![](https://img.shields.io/docker/v/cdiscdocker/cdisc-rules-engine?label=docker)](https://hub.docker.com/r/cdiscdocker/cdisc-rules-engine)
 
@@ -477,11 +477,15 @@ NOTE: if you have multiple versions of python on your machine, you can call pyth
 
 **Linux**
 
-`pyinstaller core.py --add-data=venv/lib/python3.12/site-packages/xmlschema/schemas:xmlschema/schemas --add-data=resources/cache:resources/cache --add-data=resources/templates:resources/templates --add-data=resources/jsonata:resources/jsonata`
+`pyinstaller core.py --icon=resources/assets/CORE_logo_sm.ico --add-data=venv/lib/python3.12/site-packages/xmlschema/schemas:xmlschema/schemas --add-data=resources/cache:resources/cache --add-data=resources/templates:resources/templates --add-data=resources/jsonata:resources/jsonata`
+
+**Mac**
+
+`pyinstaller core.py --icon=resources/assets/CORE_logo_sm.icns --add-data=venv/lib/python3.12/site-packages/xmlschema/schemas:xmlschema/schemas --add-data=resources/cache:resources/cache --add-data=resources/templates:resources/templates --add-data=resources/jsonata:resources/jsonata`
 
 **Windows**
 
-`pyinstaller core.py --add-data=".venv/Lib/site-packages/xmlschema/schemas;xmlschema/schemas" --add-data="resources/cache;resources/cache" --add-data="resources/templates;resources/templates" --add-data="resources/jsonata;resources/jsonata"`
+`pyinstaller core.py --icon=resources/assets/CORE_logo_sm.ico --add-data=".venv/Lib/site-packages/xmlschema/schemas;xmlschema/schemas" --add-data="resources/cache;resources/cache" --add-data="resources/templates;resources/templates" --add-data="resources/jsonata;resources/jsonata"`
 
 _Note .venv should be replaced with path to python installation or virtual environment_
 
diff --git a/resources/assets/CORE_logo_sm.icns b/resources/assets/CORE_logo_sm.icns
new file mode 100644
index 000000000..8f3fd195d
Binary files /dev/null and b/resources/assets/CORE_logo_sm.icns differ
diff --git a/resources/assets/CORE_logo_sm.ico b/resources/assets/CORE_logo_sm.ico
new file mode 100644
index 000000000..9173607e8
Binary files /dev/null and b/resources/assets/CORE_logo_sm.ico differ
diff --git a/resources/assets/CORE_logo_sm.png b/resources/assets/CORE_logo_sm.png
new file mode 100644
index 000000000..cb9e58fb5
Binary files /dev/null and b/resources/assets/CORE_logo_sm.png differ