diff --git a/etc/examples/5-complex-model/README.md b/etc/examples/5-complex-model/README.md
index 0fc76a5a3c4c70fc8f96b50c9d978cfc7c1589d8..850a208eca2273d6a8e01fb4f79b25e6f47471c7 100644
--- a/etc/examples/5-complex-model/README.md
+++ b/etc/examples/5-complex-model/README.md
@@ -6,7 +6,7 @@ __Working directory:__ `/path/to/nshmp-haz/etc/examples/5-complex-model`
 Most PSHAs involve the use of more complex source models, the components of which might use different ground motion models. For this and ensuing examples, we'll use the 2008 USGS National Seismic Hazard Model (NSHM) for the western U.S. `nshmp-haz` uses an in-memory source model. The USGS NSHMs are quite large, so it's helpful to increase the amount memory available to Java when calling `HazardCalc`. For example, set your alias to:
 
 ```Shell
-alias hazard='java -Xms1024m -Xmx4096m -cp /path/to/nshmp-haz/build/libs/nshmp-haz.jar gov.usgs.earthquake.nshmp.HazardCalc'
+alias hazard='java -Xms1g -Xmx4g -cp /path/to/nshmp-haz/build/libs/nshmp-haz.jar gov.usgs.earthquake.nshmp.HazardCalc'
 ```
 
 This will increase the minimum amount of memory Java requires to 1GB and will allow it to claim up to 4GB, assuming that much is available.
diff --git a/etc/examples/7-deaggregation/README.md b/etc/examples/7-deaggregation/README.md
index 67003f74036ba28d2bb779f3ac13c369d02943a2..c62446530ee9024887c7c47f6f1a0a28165e3011 100644
--- a/etc/examples/7-deaggregation/README.md
+++ b/etc/examples/7-deaggregation/README.md
@@ -6,7 +6,7 @@ __Working directory:__ `/path/to/nshmp-haz/etc/examples/7-deaggregation`
 To perform a deaggregation of hazard, one must use the program `DeaggCalc`. Internally, `DeaggCalc` calls `HazardCalc` and then reprocesses the data to generate a comma-delimited file of distance, magnitude, and epsilon bins, and a text file of summary statistics and primary contributing sources. For this, it can be helpful to create a second system alias:
 
 ```Shell
-alias deagg='java -Xms1024m -Xmx4096m -cp /path/to/nshmp-haz/build/libs/nshmp-haz.jar gov.usgs.earthquake.nshmp.DeaggCalc'
+alias deagg='java -Xms1g -Xmx4g -cp /path/to/nshmp-haz/build/libs/nshmp-haz.jar gov.usgs.earthquake.nshmp.DeaggCalc'
 ```
 
 `DeaggCalc` is similar to `HazardCalc` in every way except that the return-period of interest must be specified. For example, execute:
diff --git a/etc/examples/8-probabilities/README.md b/etc/examples/8-probabilities/README.md
index d53838f8772c9d96b0b8f3a2290a854d3d398c95..d9df135746c8193a4993c13cde9b96414b966da5 100644
--- a/etc/examples/8-probabilities/README.md
+++ b/etc/examples/8-probabilities/README.md
@@ -8,7 +8,7 @@ __Working directory:__ `/path/to/nshmp-haz/etc/examples/8-probabilities`
 For this example, the following system alias is helpful:
 
 ```Shell
-alias rate='java -Xms1024m -Xmx4096m -cp /path/to/nshmp-haz/build/libs/nshmp-haz.jar gov.usgs.earthquake.nshmp.RateCalc'
+alias rate='java -Xms1g -Xmx4g -cp /path/to/nshmp-haz/build/libs/nshmp-haz.jar gov.usgs.earthquake.nshmp.RateCalc'
 ```
 
 Assuming a copy of the 2008 USGS NSHM is available (see [Example 5](../5-complex-model)), execute: