diff --git a/.github/workflows/brain-seal-refresh.yml b/.github/workflows/brain-seal-refresh.yml
index 28a07ed3d..c8acbd628 100644
--- a/.github/workflows/brain-seal-refresh.yml
+++ b/.github/workflows/brain-seal-refresh.yml
@@ -37,7 +37,7 @@ jobs:
           EOF
 
       - name: Upload brain seals
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: brain-seals
           path: .trinity/seals/brain_*.json
diff --git a/.github/workflows/build-paper.yml b/.github/workflows/build-paper.yml
index cac6ceda4..415f668ef 100644
--- a/.github/workflows/build-paper.yml
+++ b/.github/workflows/build-paper.yml
@@ -53,7 +53,7 @@ jobs:
           pdflatex -interaction=nonstopmode main.tex
 
       - name: Upload artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: goldenfloat-paper
           path: docs/WHITEPAPER/
diff --git a/.github/workflows/conformance-integrity-gate.yml b/.github/workflows/conformance-integrity-gate.yml
index 0d234cf2a..0525577b4 100644
--- a/.github/workflows/conformance-integrity-gate.yml
+++ b/.github/workflows/conformance-integrity-gate.yml
@@ -56,7 +56,7 @@ jobs:
 
       - name: Upload integrity report
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: wp18-conformance-report
           path: wp18_report.json
diff --git a/.github/workflows/coq-proofs.yml b/.github/workflows/coq-proofs.yml
index 3368629fc..dcf3f46ec 100644
--- a/.github/workflows/coq-proofs.yml
+++ b/.github/workflows/coq-proofs.yml
@@ -109,7 +109,7 @@ jobs:
 
       - name: Upload Status Report
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: coq-status-report
           path: proofs/trinity/coq-status.md
diff --git a/.github/workflows/fpga-build.yml b/.github/workflows/fpga-build.yml
index 1be52266f..d82e22524 100644
--- a/.github/workflows/fpga-build.yml
+++ b/.github/workflows/fpga-build.yml
@@ -70,7 +70,7 @@ jobs:
 
       - name: Upload generated Verilog
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: fpga-verilog
           path: build/fpga/generated/
@@ -237,7 +237,7 @@ jobs:
 
       - name: Upload synthesis output
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: fpga-synthesis
           path: |
@@ -364,7 +364,7 @@ jobs:
           ls -la build/fpga/
       
       - name: Upload bitstream artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: fpga-bitstream-${{ github.sha }}
           path: build/fpga/bitstream.bit
@@ -398,7 +398,7 @@ jobs:
           sed -i 's/^          //' build/fpga/FLASHING.md
 
       - name: Upload bitstream + flashing guide
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: fpga-bitstream-${{ github.sha }}
           path: |
@@ -470,7 +470,7 @@ jobs:
 
       - name: Upload formal results
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: fpga-formal
           path: build/fpga/formal/
@@ -595,7 +595,7 @@ jobs:
 
       - name: Upload conformance results
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: fpga-conformance
           path: build/fpga/conformance/
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 8e49d7363..849c42b49 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -45,7 +45,7 @@ jobs:
 
       - name: Upload wheels (Ubuntu x86_64)
         if: matrix.os == 'ubuntu-latest' && matrix.target == 'x86_64'
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: python-wheels-x86_64
           path: target/wheels/*.whl
@@ -53,7 +53,7 @@ jobs:
 
       - name: Upload wheels (Ubuntu aarch64)
         if: matrix.os == 'ubuntu-latest' && matrix.target == 'aarch64'
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: python-wheels-aarch64
           path: target/wheels/*.whl
@@ -61,7 +61,7 @@ jobs:
 
       - name: Upload wheels (macOS aarch64)
         if: matrix.os == 'macos-latest'
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: python-wheels-macos
           path: target/wheels/*.whl
@@ -69,7 +69,7 @@ jobs:
 
       - name: Upload wheels (Windows x86_64)
         if: matrix.os == 'windows-latest'
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: python-wheels-windows
           path: target/wheels/*.whl
diff --git a/.github/workflows/vivado-synth.yml b/.github/workflows/vivado-synth.yml
index 304845969..3a29d016b 100644
--- a/.github/workflows/vivado-synth.yml
+++ b/.github/workflows/vivado-synth.yml
@@ -120,7 +120,7 @@ jobs:
           cat utilization_summary.txt
 
       - name: Upload bitstream
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: vivado-bitstream-${{ github.event.inputs.design || 'gf16' }}
@@ -131,7 +131,7 @@ jobs:
           if-no-files-found: warn
 
       - name: Upload Vivado logs & utilization
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: always()
         with:
           name: vivado-log-${{ github.event.inputs.design || 'gf16' }}