diff --git a/.github/workflows/solidity.yml b/.github/workflows/solidity.yml
index d21fc7027..b1e80c2ae 100644
--- a/.github/workflows/solidity.yml
+++ b/.github/workflows/solidity.yml
@@ -20,42 +20,42 @@ jobs:
       # Save caches individually
       - name: Core Cache
         id: core-cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ./solidity/optics-core/node_modules
           key: ${{ runner.os }}-core-cache-${{ hashFiles('solidity/optics-core/package-lock.json') }}
 
       - name: XApps Cache
         id: xapps-cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ./solidity/optics-xapps/node_modules
           key: ${{ runner.os }}-xapps-cache-${{ hashFiles('solidity/optics-xapps/package-lock.json') }}
 
       - name: Tests Cache
         id: tests-cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ./typescript/optics-tests/node_modules
           key: ${{ runner.os }}-tests-cache-${{ hashFiles('typescript/optics-tests/package-lock.json') }}
 
       - name: Deploy Cache
         id: deploy-cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ./typescript/optics-deploy/node_modules
           key: ${{ runner.os }}-deploy-cache-${{ hashFiles('typescript/optics-deploy/package-lock.json') }}
 
       - name: Typechain Cache
         id: typechain-cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ./typescript/typechain/node_modules
           key: ${{ runner.os }}-typechain-cache-${{ hashFiles('typescript/typechain/package-lock.json') }}
 
       - name: Multi-Provider Cache
         id: provider-cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ./typescript/optics-provider/node_modules
           key: ${{ runner.os }}-provider-cache-${{ hashFiles('typescript/optics-provider/package-lock.json') }}
@@ -95,14 +95,14 @@ jobs:
       # Get cache for Core and XApps
       - name: Core Cache
         id: core-cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ./solidity/optics-core/node_modules
           key: ${{ runner.os }}-core-cache-${{ hashFiles('solidity/optics-core/package-lock.json') }}
 
       - name: XApps Cache
         id: xapps-cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ./solidity/optics-xapps/node_modules
           key: ${{ runner.os }}-xapps-cache-${{ hashFiles('solidity/optics-xapps/package-lock.json') }}
@@ -128,42 +128,42 @@ jobs:
       # Get caches
       - name: Core Cache
         id: core-cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ./solidity/optics-core/node_modules
           key: ${{ runner.os }}-core-cache-${{ hashFiles('solidity/optics-core/package-lock.json') }}
 
       - name: XApps Cache
         id: xapps-cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ./solidity/optics-xapps/node_modules
           key: ${{ runner.os }}-xapps-cache-${{ hashFiles('solidity/optics-xapps/package-lock.json') }}
 
       - name: Tests Cache
         id: tests-cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ./typescript/optics-tests/node_modules
           key: ${{ runner.os }}-tests-cache-${{ hashFiles('typescript/optics-tests/package-lock.json') }}
 
       - name: Deploy Cache
         id: deploy-cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ./typescript/optics-deploy/node_modules
           key: ${{ runner.os }}-deploy-cache-${{ hashFiles('typescript/optics-deploy/package-lock.json') }}
 
       - name: Typechain Cache
         id: typechain-cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ./typescript/typechain/node_modules
           key: ${{ runner.os }}-typechain-cache-${{ hashFiles('typescript/typechain/package-lock.json') }}
 
       - name: Multi-Provider Cache
         id: provider-cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ./typescript/optics-provider/node_modules
           key: ${{ runner.os }}-provider-cache-${{ hashFiles('typescript/optics-provider/package-lock.json') }}