diff --git a/app/install b/app/install
index 2d94557..4b7f8b2 100755
--- a/app/install
+++ b/app/install
@@ -8,10 +8,10 @@
 #  https://stackoverflow.com/questions/18597697/posix-compliant-way-to-scope-variables-to-a-function-in-a-shell-script
 # shellcheck disable=SC3043,SC2034 # Uses local variables, appears unused.
 readonly \
-	BASE_APP_VERSION=0.9.20230411 \
-	BASE_MIN_VERSION=0.9.20230405 \
+	BASE_APP_VERSION=0.9.20230506 \
+	BASE_MIN_VERSION=0.9.20230505 \
 	DST=/usr/local/bin \
-	REL=0.9.20230405 \
+	REL=0.9.20230505 \
 	TGT=/usr/local/bin/base.sh
 readonly \
 	SRC=https://github.com/rdavid/shellbase/archive/refs/tags/v$REL.tar.gz
diff --git a/app/pingo b/app/pingo
index 48e0e7e..d43a44c 100755
--- a/app/pingo
+++ b/app/pingo
@@ -4,8 +4,8 @@
 # Adds timestamps to the ping command output.
 # shellcheck disable=SC1091,SC2034 # File not following, appears unused.
 readonly \
-	BASE_APP_VERSION=0.9.20230503 \
-	BASE_MIN_VERSION=0.9.20230503
+	BASE_APP_VERSION=0.9.20230505 \
+	BASE_MIN_VERSION=0.9.20230505
 . base.sh
 
 # Starting point.