diff --git a/.travis.yml b/.travis.yml
index e2358a3..58847e0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -24,7 +24,7 @@ script:
   - if [[ $POSTGRESQL_VERSION == '9.6' ]]; then sudo apt-get install -y postgresql-contrib-9.6; fi;
   - sudo apt-get install -y --allow-unauthenticated postgresql-$POSTGRESQL_VERSION-postgis-$POSTGIS_VERSION postgresql-$POSTGRESQL_VERSION-postgis-$POSTGIS_VERSION-scripts postgis
   # For pre12, install plpython2. For PG12 install plpython3 and make it default
-  - if [[ $POSTGRESQL_VERSION != '12' ]]; then sudo apt-get install -y postgresql-plpython-$POSTGRESQL_VERSION && sudo pip install redis==2.4.9; else sudo apt-get install -y postgresql-plpython3-12 && find . \( -type d -name .git -prune \) -o -type f -print0 | xargs -0 sed -i 's/plpythonu/plpython3u/g' && pip3 install redis; fi;
+  - if [[ $POSTGRESQL_VERSION != '12' ]]; then sudo apt-get install -y postgresql-plpython-$POSTGRESQL_VERSION && sudo pip install redis==2.4.9; else sudo apt-get install -y postgresql-plpython3-12 && pip3 install redis==2.4.9; fi;
   - sudo pg_dropcluster --stop $POSTGRESQL_VERSION main
   - sudo rm -rf /etc/postgresql/$POSTGRESQL_VERSION /var/lib/postgresql/$POSTGRESQL_VERSION
   - sudo pg_createcluster -u postgres $POSTGRESQL_VERSION main -- --auth-local trust --auth-host password
diff --git a/Makefile b/Makefile
index f59fa62..885e0da 100644
--- a/Makefile
+++ b/Makefile
@@ -134,12 +134,18 @@ PGXS := $(shell $(PG_CONFIG) --pgxs)
 include $(PGXS)
 
 PG_VERSION := $(shell $(PG_CONFIG) --version | $(AWK) '{split($$2,a,"."); print a[1]}')
+PG_12_GE := $(shell [ $(PG_VERSION) -ge 12 ] && echo true)
+PLPYTHONU := "plpythonu"
+ifeq ($(PG_12_GE), true)
+PLPYTHONU := "plpython3u"
+endif
 
 $(EXTENSION)--$(EXTVERSION).sql: $(CDBSCRIPTS) cartodb_version.sql Makefile
 	echo '\echo Use "CREATE EXTENSION $(EXTENSION)" to load this file. \quit' > $@
 	cat $(CDBSCRIPTS) | \
 	$(SED) 	-e 's/@extschema@/cartodb/g' \
-		-e "s/@postgisschema@/public/g" >> $@
+		-e 's/@postgisschema@/public/g' \
+		-e 's/plpythonu/$(PLPYTHONU)/g' >> $@
 	echo "GRANT USAGE ON SCHEMA cartodb TO public;" >> $@
 	cat cartodb_version.sql >> $@
 
@@ -153,10 +159,10 @@ $(EXTENSION)--$(EXTVERSION)--$(EXTVERSION)next.sql: $(EXTENSION)--$(EXTVERSION).
 	cp $< $@
 
 $(EXTENSION).control: $(EXTENSION).control.in Makefile
-	$(SED) -e 's/@@VERSION@@/$(EXTVERSION)/' $< > $@
+	$(SED) -e 's/@@VERSION@@/$(EXTVERSION)/g' -e 's/plpythonu/$(PLPYTHONU)/g' $< > $@
 
 cartodb_version.sql: cartodb_version.sql.in Makefile $(GITDIR)/index
-	$(SED) -e 's/@@VERSION@@/$(EXTVERSION)/' -e 's/@extschema@/cartodb/g' -e "s/@postgisschema@/public/g" $< > $@
+	$(SED) -e 's/@@VERSION@@/$(EXTVERSION)/' -e 's/@extschema@/cartodb/g' -e "s/@postgisschema@/public/g" -e 's/plpythonu/$(PLPYTHONU)/g' $< > $@
 
 # Needed for consistent `echo` results with backslashes
 SHELL = bash
diff --git a/NEWS.md b/NEWS.md
index 0ebb16e..3213def 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,6 @@
+0.32.0 (XXXX-XX-XX)
+* Make PG12 depend on plpython3u instead of plpythonu
+
 0.31.0 (2019-10-08)
 * Ghost tables: Add missing tags (#370)
 * Set search_path in security definer functions.
diff --git a/test/CDB_OAuth_expect.pg12 b/test/CDB_OAuth_expect.pg12
new file mode 100644
index 0000000..73767d2
--- /dev/null
+++ b/test/CDB_OAuth_expect.pg12
@@ -0,0 +1,90 @@
+
+CREATE TABLE
+INSERT 0 1
+SELECT 1
+CREATE VIEW
+SELECT 1
+SELECT 1
+1
+1
+1
+1
+1
+ERROR:  permission denied for table test
+ERROR:  permission denied for table test_tablesas
+ERROR:  permission denied for view test_view
+ERROR:  permission denied for materialized view test_mview
+ERROR:  permission denied for table test_selectinto
+DROP TABLE
+DROP VIEW
+DROP MATERIALIZED VIEW
+DROP TABLE
+DROP TABLE
+NOTICE:  event trigger "oauth_reassign_tables_trigger" does not exist, skipping
+
+CREATE TABLE
+INSERT 0 1
+SELECT 1
+CREATE VIEW
+SELECT 1
+SELECT 1
+1
+1
+1
+1
+1
+ERROR:  permission denied for table test2
+ERROR:  permission denied for table test2_tablesas
+ERROR:  permission denied for view test2_view
+ERROR:  permission denied for materialized view test2_mview
+ERROR:  permission denied for table test2_selectinto
+DROP TABLE
+DROP VIEW
+DROP MATERIALIZED VIEW
+DROP TABLE
+DROP TABLE
+
+CREATE TABLE
+INSERT 0 1
+SELECT 1
+CREATE VIEW
+SELECT 1
+SELECT 1
+1
+1
+1
+1
+1
+ERROR:  permission denied for table test3
+ERROR:  permission denied for table test3_tablesas
+ERROR:  permission denied for view test3_view
+ERROR:  permission denied for materialized view test3_mview
+ERROR:  permission denied for table test3_selectinto
+DROP TABLE
+DROP VIEW
+DROP MATERIALIZED VIEW
+DROP TABLE
+DROP TABLE
+
+CREATE TABLE
+INSERT 0 1
+SELECT 1
+CREATE VIEW
+SELECT 1
+SELECT 1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+DROP TABLE
+DROP VIEW
+DROP MATERIALIZED VIEW
+DROP TABLE
+DROP TABLE
+