diff --git a/Makefile b/Makefile
index 8b4625d19..5669e22bb 100644
--- a/Makefile
+++ b/Makefile
@@ -119,7 +119,7 @@ endif
 ##################
 .PHONY: deps libbacktrace
 
-FOUNDRY_VERSION := 1.5.0
+FOUNDRY_VERSION := 1.4.2
 
 rustup:
 ifeq (, $(shell which cargo))
diff --git a/scripts/install_anvil.sh b/scripts/install_anvil.sh
index 24a5fd312..c573ac31c 100755
--- a/scripts/install_anvil.sh
+++ b/scripts/install_anvil.sh
@@ -34,7 +34,7 @@ else
     fi
 
     # Run foundryup to install the required version
-    if [ -n "$git" ]; then
+    if [ -n "$REQUIRED_FOUNDRY_VERSION" ]; then
         echo "Installing Foundry tools version $REQUIRED_FOUNDRY_VERSION..."
         foundryup --install "$REQUIRED_FOUNDRY_VERSION"
     else