diff --git a/l1-contracts/Dockerfile b/l1-contracts/Dockerfile
index c0aa78515b8..75568db49f8 100644
--- a/l1-contracts/Dockerfile
+++ b/l1-contracts/Dockerfile
@@ -10,7 +10,7 @@ RUN curl -L https://foundry.paradigm.xyz | bash
 
 # Set env variables for foundry and venv
 ENV PATH="${PATH}:/root/.foundry/bin:/root/.venv/bin"
-RUN foundryup
+RUN foundryup --version nightly-de33b6af53005037b463318d2628b5cfcaf39916
 
 WORKDIR /usr/src/l1-contracts
 COPY . .
diff --git a/l1-contracts/Earthfile b/l1-contracts/Earthfile
index c93c31bf1b3..7943106fa41 100644
--- a/l1-contracts/Earthfile
+++ b/l1-contracts/Earthfile
@@ -9,7 +9,7 @@ RUN curl -L https://foundry.paradigm.xyz | bash
 
 # Set env variables for foundry and venv
 ENV PATH="${PATH}:/root/.foundry/bin:/root/.venv/bin"
-RUN foundryup
+RUN foundryup --version nightly-de33b6af53005037b463318d2628b5cfcaf39916
 
 # Install yarn and solhint.
 RUN npm install --global yarn solhint