diff --git a/libexec/trick/java/lib/Makefile b/libexec/trick/java/lib/Makefile
index 89c57796..ccbf41fa 100644
--- a/libexec/trick/java/lib/Makefile
+++ b/libexec/trick/java/lib/Makefile
@@ -32,40 +32,40 @@ EXTERNAL_JARS = \
 external_jars : ${EXTERNAL_JARS}
 
 bsaf-1.9.2.jar :
-	curl --retry 4 -O http://repo.maven.apache.org/maven2/org/jdesktop/bsaf/bsaf/1.9.2/bsaf-1.9.2.jar
+	curl --retry 4 -O https://repo.maven.apache.org/maven2/org/jdesktop/bsaf/bsaf/1.9.2/bsaf-1.9.2.jar
 jcommon-1.0.23.jar :
-	curl --retry 4 -O http://repo.maven.apache.org/maven2/org/jfree/jcommon/1.0.23/jcommon-1.0.23.jar
+	curl --retry 4 -O https://repo.maven.apache.org/maven2/org/jfree/jcommon/1.0.23/jcommon-1.0.23.jar
 jfreechart-1.0.19.jar :
-	curl --retry 4 -O http://repo.maven.apache.org/maven2/org/jfree/jfreechart/1.0.19/jfreechart-1.0.19.jar
+	curl --retry 4 -O https://repo.maven.apache.org/maven2/org/jfree/jfreechart/1.0.19/jfreechart-1.0.19.jar
 jfreesvg-2.1.jar :
-	curl --retry 4 -O http://repo.maven.apache.org/maven2/org/jfree/jfreesvg/2.1/jfreesvg-2.1.jar
+	curl --retry 4 -O https://repo.maven.apache.org/maven2/org/jfree/jfreesvg/2.1/jfreesvg-2.1.jar
 jopt-simple-4.8.jar :
-	curl --retry 4 -O http://repo.maven.apache.org/maven2/net/sf/jopt-simple/jopt-simple/4.8/jopt-simple-4.8.jar
+	curl --retry 4 -O https://repo.maven.apache.org/maven2/net/sf/jopt-simple/jopt-simple/4.8/jopt-simple-4.8.jar
 junit-4.12.jar:
-	curl --retry 4 -O http://repo1.maven.org/maven2/junit/junit/4.12/junit-4.12.jar
+	curl --retry 4 -O https://repo1.maven.org/maven2/junit/junit/4.12/junit-4.12.jar
 swingx-1.6.1.jar :
-	curl --retry 4 -O http://repo.maven.apache.org/maven2/org/swinglabs/swingx/1.6.1/swingx-1.6.1.jar
+	curl --retry 4 -O https://repo.maven.apache.org/maven2/org/swinglabs/swingx/1.6.1/swingx-1.6.1.jar
 hamcrest-core-1.3.jar :
-	curl --retry 4 -O http://repo.maven.apache.org/maven2/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar
+	curl --retry 4 -O https://repo.maven.apache.org/maven2/org/hamcrest/hamcrest-core/1.3/hamcrest-core-1.3.jar
 pdfbox-2.0.11.jar :
-	curl --retry 4 -O http://repo.maven.apache.org/maven2/org/apache/pdfbox/pdfbox/2.0.11/pdfbox-2.0.11.jar
+	curl --retry 4 -O https://repo.maven.apache.org/maven2/org/apache/pdfbox/pdfbox/2.0.11/pdfbox-2.0.11.jar
 fontbox-2.0.11.jar :
-	curl --retry 4 -O http://repo.maven.apache.org/maven2/org/apache/pdfbox/fontbox/2.0.11/fontbox-2.0.11.jar
+	curl --retry 4 -O https://repo.maven.apache.org/maven2/org/apache/pdfbox/fontbox/2.0.11/fontbox-2.0.11.jar
 commons-logging-1.2.jar :
 	curl --retry 4 -O https://repo1.maven.org/maven2/commons-logging/commons-logging/1.2/commons-logging-1.2.jar
 jaxb-runtime-2.4.0-b180830.0438.jar:	
-	curl --retry 4 -O http://repo.maven.apache.org/maven2/org/glassfish/jaxb/jaxb-runtime/2.4.0-b180830.0438/jaxb-runtime-2.4.0-b180830.0438.jar
+	curl --retry 4 -O https://repo.maven.apache.org/maven2/org/glassfish/jaxb/jaxb-runtime/2.4.0-b180830.0438/jaxb-runtime-2.4.0-b180830.0438.jar
 jaxb-xjc-2.4.0-b180830.0438.jar:
-	curl --retry 4 -O http://repo.maven.apache.org/maven2/com/sun/xml/bind/jaxb-xjc/2.4.0-b180830.0438/jaxb-xjc-2.4.0-b180830.0438.jar
+	curl --retry 4 -O https://repo.maven.apache.org/maven2/com/sun/xml/bind/jaxb-xjc/2.4.0-b180830.0438/jaxb-xjc-2.4.0-b180830.0438.jar
 jaxb-jxc-2.4.0-b180830.0438.jar:
-	curl --retry 4 -O http://repo.maven.apache.org/maven2/com/sun/xml/bind/jaxb-jxc/2.4.0-b180830.0438/jaxb-jxc-2.4.0-b180830.0438.jar
+	curl --retry 4 -O https://repo.maven.apache.org/maven2/com/sun/xml/bind/jaxb-jxc/2.4.0-b180830.0438/jaxb-jxc-2.4.0-b180830.0438.jar
 jaxb-impl-2.4.0-b180830.0438.jar:
-	curl --retry 4 -O http://repo.maven.apache.org/maven2/com/sun/xml/bind/jaxb-impl/2.4.0-b180830.0438/jaxb-impl-2.4.0-b180830.0438.jar 
+	curl --retry 4 -O https://repo.maven.apache.org/maven2/com/sun/xml/bind/jaxb-impl/2.4.0-b180830.0438/jaxb-impl-2.4.0-b180830.0438.jar 
 jaxb-core-2.3.0.1.jar:
-	curl --retry 4 -O http://repo.maven.apache.org/maven2/com/sun/xml/bind/jaxb-core/2.3.0.1/jaxb-core-2.3.0.1.jar 
+	curl --retry 4 -O https://repo.maven.apache.org/maven2/com/sun/xml/bind/jaxb-core/2.3.0.1/jaxb-core-2.3.0.1.jar 
 jaxb-api-2.4.0-b180725.0427.jar:
-	curl --retry 4 -O http://repo.maven.apache.org/maven2/javax/xml/bind/jaxb-api/2.4.0-b180725.0427/jaxb-api-2.4.0-b180725.0427.jar
+	curl --retry 4 -O https://repo.maven.apache.org/maven2/javax/xml/bind/jaxb-api/2.4.0-b180725.0427/jaxb-api-2.4.0-b180725.0427.jar
 javax.activation-1.2.0.jar:
-	curl --retry 4 -O http://repo.maven.apache.org/maven2/com/sun/activation/javax.activation/1.2.0/javax.activation-1.2.0.jar
+	curl --retry 4 -O https://repo.maven.apache.org/maven2/com/sun/activation/javax.activation/1.2.0/javax.activation-1.2.0.jar
 clean:
 	rm -f ${EXTERNAL_JARS}