diff --git a/gstlal-inspiral/share/O3/optimized/Makefile.ligosoftware_gcc_gstlal b/gstlal-inspiral/share/O3/optimized/Makefile.ligosoftware_gcc_gstlal
index d06cd318c89d7224b1af04a32616faa4357992ea..199a9e1d343c91875b4fd501885a05cee6f6d5f8 100644
--- a/gstlal-inspiral/share/O3/optimized/Makefile.ligosoftware_gcc_gstlal
+++ b/gstlal-inspiral/share/O3/optimized/Makefile.ligosoftware_gcc_gstlal
@@ -54,7 +54,7 @@ GSTLALCALIBRATION=gstlal-calibration-1.2.10
 GSTLALBURST=gstlal-burst-0.1.1
 GSTLALUGLY=gstlal-ugly-1.6.4
 GSTLAL=gstlal-1.5.0
-LIGOSCALD=ligo-scald-0.4.1
+LIGOSCALD=ligo-scald-0.5.0
 KAFKA_PYTHON=0.11.5
 LIBRDKAFKA=0.11.5
 LALAPPS=lalapps-6.24.0
diff --git a/gstlal-inspiral/share/O3/optimized/Makefile.ligosoftware_icc_all b/gstlal-inspiral/share/O3/optimized/Makefile.ligosoftware_icc_all
index 4a119a96abfe68406283a99d775298a233c3d764..54aa35d98ee1c6359077e5d69d92f00f4b8ad914 100644
--- a/gstlal-inspiral/share/O3/optimized/Makefile.ligosoftware_icc_all
+++ b/gstlal-inspiral/share/O3/optimized/Makefile.ligosoftware_icc_all
@@ -59,7 +59,7 @@ GSTLALCALIBRATION=gstlal-calibration-1.2.10
 GSTLALBURST=gstlal-burst-0.1.1
 GSTLALUGLY=gstlal-ugly-1.6.4
 GSTLAL=gstlal-1.5.0
-LIGOSCALD=ligo-scald-0.4.1
+LIGOSCALD=ligo-scald-0.5.0
 KAFKA_PYTHON=0.11.5
 LIBRDKAFKA=0.11.5
 LALAPPS=lalapps-6.24.0