diff --git a/fcl/protodunevd/detsim/protodunevd_detsim.fcl b/fcl/protodunevd/detsim/protodunevd_detsim.fcl
index 165dcd58..e9ed8ada 100644
--- a/fcl/protodunevd/detsim/protodunevd_detsim.fcl
+++ b/fcl/protodunevd/detsim/protodunevd_detsim.fcl
@@ -39,9 +39,10 @@ physics:
   simulate: [ rns, 
               # TPC simulation
               tpcrawdecoder,
-              # OpDet and CRT simulation
-              sipmSim, opdigi,
-              crt
+              # OpDet simulation
+              opdigi,
+              # CRT simulation
+	      crt
             ] 
   stream1:  [ out1 ]
 
diff --git a/fcl/protodunevd/detsim/protodunevd_detsim_nopds.fcl b/fcl/protodunevd/detsim/protodunevd_detsim_nopds.fcl
index 148c7f71..b5819e19 100644
--- a/fcl/protodunevd/detsim/protodunevd_detsim_nopds.fcl
+++ b/fcl/protodunevd/detsim/protodunevd_detsim_nopds.fcl
@@ -1,6 +1,6 @@
 #include "protodunevd_detsim.fcl"
 
-physics:.simulate: [ rns, 
+physics.simulate: [ rns, 
                      tpcrawdecoder,
                      crt
                    ] 
diff --git a/test/ci/ci_test_detsim_protoDUNEvd.fcl b/test/ci/ci_test_detsim_protoDUNEvd.fcl
index 6b684a32..c572dc6e 100644
--- a/test/ci/ci_test_detsim_protoDUNEvd.fcl
+++ b/test/ci/ci_test_detsim_protoDUNEvd.fcl
@@ -7,7 +7,6 @@ services.NuRandomService.StuckBitAdcDistortionService: 1234
 services.NuRandomService.ExponentialChannelNoiseService: 1234
 services.NuRandomService.ProvidedPedestalAdditionService: 1234
 services.NuRandomService.opdigi.waveformdigi: 1234
-services.NuRandomService.sipmSim.sipm: 1234
 
 services.RandomNumberGenerator.restoreFrom: "DetSimRandomSeeds_Ref_protoDUNE.dat"
 services.RandomNumberGenerator.saveTo: "DetSimRandomSeeds.dat"
diff --git a/test/ci/ci_tests.cfg b/test/ci/ci_tests.cfg
index ef7c0b54..a01db071 100755
--- a/test/ci/ci_tests.cfg
+++ b/test/ci/ci_tests.cfg
@@ -474,7 +474,7 @@ OUTPUT_STREAM=%(BASE_FILE_NAME)s_%(STAGE_NAME)s_%(CUR_DUNETPC)s.root
 REFERENCE_FILES=%(XROOTD_INPUTFILEDIR_DUNETPC)s/%(EXTRA_DIR)s/%(STAGE_NAME)s/%(BASE_FILE_NAME)s_%(STAGE_NAME)s_%(REF_DUNETPC)s.root
 args=%(STDARGS_DUNETPC)s --input-files-to-fetch %(INPUT_FILES_TO_FETCH)s --input-file %(INPUT_STREAM)s --reference-files %(REFERENCE_FILES)s
 parse_art_time_db=True
-mem_usage_range=1050000:2000000
+mem_usage_range=500000:2000000
 cpu_usage_range=50:400
 output1=*.root