diff --git a/Docker/pulp-base/Dockerfile b/Docker/pulp-base/Dockerfile
index 161eab17b40f29dcbace18dd9cdc0f0858573ff8..6455f020ff5914af33d24dd463fe3016576bc09e 100644
--- a/Docker/pulp-base/Dockerfile
+++ b/Docker/pulp-base/Dockerfile
@@ -210,7 +210,7 @@ ENV PYTHONPATH="${INSTALLDIR}/bin:${INSTALLDIR}/lib/python2.7/site-packages/:${I
 #   TEMPO
 # *******************
 #
-RUN cd ${INSTALLDIR}/src && sudo git clone git://git.code.sf.net/p/tempo/tempo && cd tempo && sudo chmod go+w obsys.dat && \
+RUN cd ${INSTALLDIR}/src && sudo git clone https://git.code.sf.net/p/tempo/tempo && cd tempo && sudo chmod go+w obsys.dat && \
     sudo chmod go-w obsys.dat && sudo ./prepare && sudo ./configure --prefix=${INSTALLDIR} && sudo make && sudo make install
 
 ENV TEMPO="${INSTALLDIR}/src/tempo"
@@ -276,7 +276,7 @@ ENV SIGPROC="${INSTALLDIR}/src/sigproc-4.3"
 # PRESTO version ~v2.1-2.2. What happened to be used in LOFAR when we stopped building pulp in 2018.
 ENV PRESTO_VERSION=e90b8148f813c151f588f5f94b81b606964b03a8
 ENV PRESTO="${INSTALLDIR}/src/presto"
-RUN cd ${INSTALLDIR}/src && sudo git clone git://github.com/scottransom/presto.git && \
+RUN cd ${INSTALLDIR}/src && sudo git clone https://github.com/scottransom/presto.git && \
     cd presto && sudo git checkout $PRESTO_VERSION && \
     cd src && sudo make PRESTO=${PRESTO} makewisdom
 RUN cd ${PRESTO}/src && sudo make PRESTO=${PRESTO} prep && \
@@ -289,7 +289,7 @@ RUN cd ${PRESTO}/src && sudo make PRESTO=${PRESTO} prep && \
 #   PSRDADA
 # *******************
 #
-RUN cd ${INSTALLDIR}/src && sudo git clone git://git.code.sf.net/p/psrdada/code psrdada && \
+RUN cd ${INSTALLDIR}/src && sudo git clone https://git.code.sf.net/p/psrdada/code psrdada && \
     cd psrdada && sudo sed -i 's/mopsr\ //' Makefile.am && sudo ./bootstrap && \
     sudo ./configure --prefix=${INSTALLDIR} --enable-shared --with-x && sudo make && sudo make install
 
@@ -315,7 +315,7 @@ RUN cd ${INSTALLDIR}/src && sudo git clone https://github.com/straten/epsic.git
 #
 # Last version used in prod before migrating to gitlab in 2021-06
 ENV PSRCHIVE_VERSION=2de7983282ebc6d49ba881a7288d9c3081d22386
-RUN cd ${INSTALLDIR}/src && sudo git clone git://git.code.sf.net/p/psrchive/code psrchive && cd psrchive && \
+RUN cd ${INSTALLDIR}/src && sudo git clone https://git.code.sf.net/p/psrchive/code psrchive && cd psrchive && \
     sudo git checkout $PSRCHIVE_VERSION && \
     sudo sed -i '338i\ \ \ \ \ \ have_qt="yes"' config/bnv_have_qt.m4 && \
     sudo sed -i 's/SUBDIRS\ +=\ psrgui/#SUBDIRS\ +=\ psrgui/' More/Makefile.am && sudo ./bootstrap && \
@@ -350,7 +350,7 @@ RUN cd ${INSTALLDIR}/src && sudo git clone https://git.astron.nl/ro/dal2.git DAL
 # backends removed: fadc puma
 #
 ENV DSPSR_VERSION=3c3a531c821370abb4836231807124e162708536
-RUN cd ${INSTALLDIR}/src && sudo git clone git://git.code.sf.net/p/dspsr/code dspsr && sudo chmod go+w dspsr && cd dspsr && \
+RUN cd ${INSTALLDIR}/src && sudo git clone https://git.code.sf.net/p/dspsr/code dspsr && sudo chmod go+w dspsr && cd dspsr && \
     sudo git checkout $DSPSR_VERSION && \
     sudo ./bootstrap && sudo sed -i 's/AR_FLAGS=cru/AR_FLAGS=cruU/' config/libtool.m4 && \
     sudo sed -i 's/-lhdf5/-lhdf5_serial/' Kernel/Formats/lofar_dal/Makefile.am && \