diff --git a/.changeset/olive-buckets-lay.md b/.changeset/olive-buckets-lay.md
new file mode 100644
index 00000000..ac6c5a9d
--- /dev/null
+++ b/.changeset/olive-buckets-lay.md
@@ -0,0 +1,5 @@
+---
+"@cartesi/devnet": major
+---
+
+lock anvil version in CI to the same anvil used by cartesi/rollups-contracts
diff --git a/.github/workflows/devnet.yaml b/.github/workflows/devnet.yaml
index 67a1e49b..0f3a8ced 100644
--- a/.github/workflows/devnet.yaml
+++ b/.github/workflows/devnet.yaml
@@ -30,6 +30,8 @@ jobs:
 
             - name: Install Foundry
               uses: foundry-rs/foundry-toolchain@v1
+              with:
+                  version: nightly-2044faec64f99a21f0e5f0094458a973612d0712
 
             - name: Install dependencies
               run: pnpm install
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 9140fc27..40491474 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -34,6 +34,8 @@ jobs:
 
             - name: Install Foundry
               uses: foundry-rs/foundry-toolchain@v1
+              with:
+                  version: nightly-2044faec64f99a21f0e5f0094458a973612d0712
 
             - name: Install Dependencies
               run: pnpm install