diff --git a/.github/workflows/build_all.yml b/.github/workflows/build_all.yml
index a45d336f86c..a6141efff7b 100644
--- a/.github/workflows/build_all.yml
+++ b/.github/workflows/build_all.yml
@@ -46,9 +46,9 @@ jobs:
         include:
           - os: ubuntu-20.04
           - os: windows-latest
-          - os: macos-12
+          - os: macos-13
             arch: x86_64
-          - os: macos-12
+          - os: macos-13
             arch: arm64
     uses: ./.github/workflows/build_check_cache.yml
     with:
diff --git a/.github/workflows/build_check_cache.yml b/.github/workflows/build_check_cache.yml
index cccc0849443..b8013a5eaf9 100644
--- a/.github/workflows/build_check_cache.yml
+++ b/.github/workflows/build_check_cache.yml
@@ -28,9 +28,9 @@ jobs:
       - name: set outputs
         id: set_outputs
         env:
-          underscore-arch: ${{ inputs.os == 'macos-12' && '_' || ''}}${{ inputs.os == 'macos-12' && inputs.arch || '' }} # if is macos, make a string that does "_{arch}", else output nothing
-          dash-arch: ${{ inputs.os == 'macos-12' && '-' || ''}}${{ inputs.os == 'macos-12' && inputs.arch || '' }} # if is macos, make a string that does "-{arch}", else output nothing
-          dep-folder-name: ${{ (inputs.os == 'windows-latest' || inputs.os == 'macos-12') && 'OrcaSlicer_dep' || 'destdir' }}
+          underscore-arch: ${{ inputs.os == 'macos-13' && '_' || ''}}${{ inputs.os == 'macos-13' && inputs.arch || '' }} # if is macos, make a string that does "_{arch}", else output nothing
+          dash-arch: ${{ inputs.os == 'macos-13' && '-' || ''}}${{ inputs.os == 'macos-13' && inputs.arch || '' }} # if is macos, make a string that does "-{arch}", else output nothing
+          dep-folder-name: ${{ (inputs.os == 'windows-latest' || inputs.os == 'macos-13') && 'OrcaSlicer_dep' || 'destdir' }}
           output-cmd: ${{ inputs.os == 'windows-latest' && '$env:GITHUB_OUTPUT' || '"$GITHUB_OUTPUT"'}}
         run: |
           echo cache-key=${{ runner.os }}${{ env.dash-arch }}-cache-orcaslicer_deps-build-${{ hashFiles('deps/**') }} >> ${{ env.output-cmd }}
diff --git a/.github/workflows/build_deps.yml b/.github/workflows/build_deps.yml
index e6a61029d53..0357d1c5432 100644
--- a/.github/workflows/build_deps.yml
+++ b/.github/workflows/build_deps.yml
@@ -67,10 +67,11 @@ jobs:
             cd ${{ github.workspace }}/deps/build
 
       - name: Build on Mac ${{ inputs.arch }}
-        if: inputs.os == 'macos-12'
+        if: inputs.os == 'macos-13'
         working-directory: ${{ github.workspace }}
         run: |
             brew install cmake git gettext automake
+            brew uninstall --ignore-dependencies zstd
             brew list
             mkdir -p ${{ github.workspace }}/deps/build_${{ inputs.arch }}
             mkdir -p ${{ github.workspace }}/deps/build_${{ inputs.arch }}/OrcaSlicer_dep_${{ inputs.arch }}
@@ -97,7 +98,7 @@ jobs:
             
       # Upload Artifacts
       - name: Upload Mac ${{ inputs.arch }} artifacts
-        if: inputs.os == 'macos-12'
+        if: inputs.os == 'macos-13'
         uses: actions/upload-artifact@v3
         with:
           name: OrcaSlicer_dep_mac_${{ inputs.arch }}_${{ env.date }}
diff --git a/.github/workflows/build_orca.yml b/.github/workflows/build_orca.yml
index 3091966e976..ac558acefd3 100644
--- a/.github/workflows/build_orca.yml
+++ b/.github/workflows/build_orca.yml
@@ -74,21 +74,24 @@ jobs:
         
 #   Mac
       - name: Install tools mac
-        if: inputs.os == 'macos-12'
+        if: inputs.os == 'macos-13'
         run: |
-          brew install cmake git gettext zstd tree
+          brew install cmake git gettext tree
+          brew uninstall --ignore-dependencies zstd
+          brew list
           mkdir -p ${{ github.workspace }}/deps/build_${{inputs.arch}}
           mkdir -p ${{ github.workspace }}/deps/build_${{inputs.arch}}/OrcaSlicer_dep_${{inputs.arch}}
+          tree ${{ github.workspace }}/deps/build_${{inputs.arch}}/OrcaSlicer_dep_${{inputs.arch}}
 
       - name: Build slicer mac
-        if: inputs.os == 'macos-12'
+        if: inputs.os == 'macos-13'
         working-directory: ${{ github.workspace }}
         run: |
           ./build_release_macos.sh -s -n -a ${{inputs.arch}}
 
  # Thanks to RaySajuuk, it's working now
       - name: Sign app and notary
-        if: (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/heads/release/')) && inputs.os == 'macos-12'
+        if: (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/heads/release/')) && inputs.os == 'macos-13'
         working-directory: ${{ github.workspace }}
         env:
           BUILD_CERTIFICATE_BASE64: ${{ secrets.BUILD_CERTIFICATE_BASE64 }}
@@ -114,14 +117,14 @@ jobs:
           xcrun stapler staple OrcaSlicer_Mac_${{inputs.arch}}_${{ env.ver }}.dmg
 
       - name: Create DMG without notary
-        if: github.ref != 'refs/heads/main' && inputs.os == 'macos-12'
+        if: github.ref != 'refs/heads/main' && inputs.os == 'macos-13'
         working-directory: ${{ github.workspace }}
         run: |
           ln -s /Applications ${{ github.workspace }}/build_${{inputs.arch}}/OrcaSlicer/Applications
           hdiutil create -volname "OrcaSlicer" -srcfolder ${{ github.workspace }}/build_${{inputs.arch}}/OrcaSlicer -ov -format UDZO OrcaSlicer_Mac_${{inputs.arch}}_${{ env.ver }}.dmg
 
       - name: Upload artifacts mac
-        if: inputs.os == 'macos-12'
+        if: inputs.os == 'macos-13'
         uses: actions/upload-artifact@v3
         with:
           name: OrcaSlicer_Mac_${{inputs.arch}}_${{ env.ver }}
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3cda64ffd5f..a29560220ed 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -436,11 +436,8 @@ find_package(TBB REQUIRED)
 # add_definitions(-DTBB_USE_CAPTURED_EXCEPTION=0)
 
 find_package(OpenSSL REQUIRED)
-if (APPLE)
-find_package(CURL CONFIG REQUIRED)
-else()
 find_package(CURL REQUIRED)
-endif()
+
 
 add_library(libcurl INTERFACE)
 target_link_libraries(libcurl INTERFACE CURL::libcurl)
diff --git a/build_release_macos.sh b/build_release_macos.sh
index a9defeaf24a..b7cac93c187 100755
--- a/build_release_macos.sh
+++ b/build_release_macos.sh
@@ -35,18 +35,19 @@ fi
 echo "Arch: $ARCH"
 echo "BUILD_TARGET: $BUILD_TARGET"
 
-if which -s brew; then
-	brew --prefix libiconv
-	brew --prefix zstd
-	export LIBRARY_PATH=$LIBRARY_PATH:$(brew --prefix zstd)/lib/
-elif which -s port; then
-	port install libiconv
-	port install zstd
-	export LIBRARY_PATH=$LIBRARY_PATH:/opt/local/lib
-else
-	echo "Need either brew or macports to successfully build deps"
-	exit 1
-fi
+# if which -s brew; then
+# 	brew --prefix libiconv
+# 	brew --prefix zstd
+# 	export LIBRARY_PATH=$LIBRARY_PATH:$(brew --prefix zstd)/lib/
+# elif which -s port; then
+# 	port install libiconv
+# 	port install zstd
+# 	export LIBRARY_PATH=$LIBRARY_PATH:/opt/local/lib
+# else
+# 	echo "Need either brew or macports to successfully build deps"
+# 	exit 1
+# fi
+
 
 WD="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 cd $WD/deps