diff --git a/plugins/faustwp/.docker/Dockerfile b/plugins/faustwp/.docker/Dockerfile
index 30e7a988d..bfa4a6975 100644
--- a/plugins/faustwp/.docker/Dockerfile
+++ b/plugins/faustwp/.docker/Dockerfile
@@ -34,7 +34,16 @@ RUN set -e \
 	-qq --no-install-recommends \
 	; sudo adduser www-data sudo \
 	; rm -rf /var/lib/apt/lists/* \
-	&& pecl install pcov \
+	# Build pcov from its GitHub release, since PECL often answers
+	# "No releases available" to CI runners.
+	&& curl -fsSL https://github.com/krakjoe/pcov/archive/refs/tags/v1.0.12.tar.gz | tar -xz -C /tmp \
+	&& cd /tmp/pcov-1.0.12 \
+	&& phpize \
+	&& ./configure --enable-pcov \
+	&& make -j"$(nproc)" \
+	&& make install \
+	&& cd / \
+	&& rm -rf /tmp/pcov-1.0.12 \
 	&& docker-php-ext-enable pcov
 
 # Copy the script to create the testing environment