diff --git a/services/web/Dockerfile b/services/web/Dockerfile
index c5f1824189..cbe694dc68 100644
--- a/services/web/Dockerfile
+++ b/services/web/Dockerfile
@@ -18,6 +18,9 @@ RUN mkdir -p /overleaf/services/web/data/dumpFolder \
     &&  chmod -R 0755 /overleaf/services/web/data \
     &&  chown -R node:node /overleaf/services/web/data
 
+# Add intermediate certificate for prism.optica.org
+COPY services/web/certs/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crt.pem /usr/local/share/ca-certificates/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crt
+RUN update-ca-certificates
 
 # the deps image is used for caching npm ci
 FROM base AS deps-prod
@@ -127,6 +130,7 @@ CMD ["node", "--expose-gc", "app.mjs"]
 FROM pug AS app
 ARG SENTRY_RELEASE
 ENV SENTRY_RELEASE=$SENTRY_RELEASE
+ENV NODE_EXTRA_CA_CERTS=/usr/local/share/ca-certificates/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crt
 COPY --from=webpack-no-sourcemaps /overleaf/services/web/public /overleaf/services/web/public
 USER node
 CMD ["node", "--expose-gc", "app.mjs"]
diff --git a/services/web/certs/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crt.pem b/services/web/certs/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crt.pem
new file mode 100644
index 0000000000..f06ba91adf
--- /dev/null
+++ b/services/web/certs/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crt.pem
@@ -0,0 +1,28 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----