diff --git a/Makefile b/Makefile
index f860d3ad..f075fbfb 100644
--- a/Makefile
+++ b/Makefile
@@ -11,7 +11,7 @@ GOTENBERG_VERSION=snapshot
 GOTENBERG_USER_GID=1001
 GOTENBERG_USER_UID=1001
 NOTO_COLOR_EMOJI_VERSION=v2.034 # See https://github.com/googlefonts/noto-emoji/releases.
-PDFTK_VERSION=5024297 # See https://gitlab.com/pdftk-java/pdftk/-/releases - Binary package.
+PDFTK_VERSION=v3.3.2 # See https://gitlab.com/pdftk-java/pdftk/-/releases - Binary package.
 GOLANGCI_LINT_VERSION=v1.44.0 # See https://github.com/golangci/golangci-lint/releases.
 
 .PHONY: build
diff --git a/build/Dockerfile b/build/Dockerfile
index 9db5e835..f2ef5e6f 100644
--- a/build/Dockerfile
+++ b/build/Dockerfile
@@ -131,8 +131,8 @@ RUN \
     # unoconv will look for the Python binary, which has to be at version 3.
     ln -s /usr/bin/python3 /usr/bin/python &&\
     # Download PDFtk.
-    # See https://github.com/gotenberg/gotenberg/pull/273.
-    curl -o /usr/bin/pdftk-all.jar "https://gitlab.com/pdftk-java/pdftk/-/jobs/$PDFTK_VERSION/artifacts/raw/build/libs/pdftk-all.jar" &&\
+    # See https://github.com/gotenberg/gotenberg/pull/273. \
+    curl -o /usr/bin/pdftk-all.jar "https://gitlab.com/api/v4/projects/5024297/packages/generic/pdftk-java/$PDFTK_VERSION/pdftk-all.jar" &&\
     chmod a+x /usr/bin/pdftk-all.jar &&\
     # Download QPDF.
     DEBIAN_FRONTEND=noninteractive apt-get install -y -qq --no-install-recommends qpdf &&\