diff --git a/build-constraints.yaml b/build-constraints.yaml
index cea7724b..8dea0fc0 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3452,7 +3452,7 @@ packages:
         - gi-gtksource3
         - gi-gtksource5 < 0 # blocked by https://github.com/haskellfoundation/hf-infrastructure/issues/11
         - gi-javascriptcore < 0 # gi-javascriptcore6
-        - gi-javascriptcore4
+        - gi-javascriptcore4 < 0 # blocked by https://github.com/haskellfoundation/hf-infrastructure/issues/11
         - gi-javascriptcore6 < 0 # blocked by https://github.com/haskellfoundation/hf-infrastructure/issues/11
         - gi-vte
         - gi-webkit2
diff --git a/docker/02-apt-get-install.sh b/docker/02-apt-get-install.sh
index 6a69ad3a..df622b8f 100755
--- a/docker/02-apt-get-install.sh
+++ b/docker/02-apt-get-install.sh
@@ -24,6 +24,7 @@ apt-get install -y \
     fsharp \
     g++ \
     gawk \
+    gir1.2-javascriptcoregtk-4.0 \
     gir1.2-javascriptcoregtk-6.0 \
     git \
     gnupg \