diff --git a/SourceSFSVN/SourceSFSVN.php b/SourceSFSVN/SourceSFSVN.php
index 593f2e3..a4e91a5 100644
--- a/SourceSFSVN/SourceSFSVN.php
+++ b/SourceSFSVN/SourceSFSVN.php
@@ -172,7 +172,7 @@
 
 			$t_url = $p_repo->url;
 			$t_revision = $p_matches[1];
-			$t_svnlog = explode( "\n", `$svn log -v $t_url -r$t_revision` );
+			$t_svnlog = explode( "\n", shell_exec( "$svn log -v $t_url -r$t_revision" ) );
 
 			if ( SourceChangeset::exists( $p_repo->id, $t_revision ) ) {
 				echo "Revision $t_revision already committed!\n";
@@ -200,7 +200,7 @@
 
 		$t_url = $p_repo->url;
 		$t_rev = $t_db_revision + 1;
-		$t_svnlog = explode( "\n", `$svn log -v -r $t_rev:HEAD --limit 200 $t_url` );
+		$t_svnlog = explode( "\n", shell_exec( "$svn log -v -r $t_rev:HEAD --limit 200 $t_url" ) );
 
 		return $this->process_svn_log( $p_repo, $t_svnlog );
 	}
@@ -216,7 +216,7 @@
 	function check_svn() {
 		$svn = $this->svn_call();
 
-		if ( is_blank( `$svn help` ) ) {
+		if ( is_blank( shell_exec( "$svn help" ) ) ) {
 			trigger_error( ERROR_GENERIC, ERROR );
 		}
 	}
diff --git a/SourceWebSVN/SourceWebSVN.php b/SourceWebSVN/SourceWebSVN.php
index 614e074..868b00b 100644
--- a/SourceWebSVN/SourceWebSVN.php
+++ b/SourceWebSVN/SourceWebSVN.php
@@ -194,7 +194,7 @@
 
 			$t_url = $p_repo->url;
 			$t_revision = $p_matches[1];
-			$t_svnlog = explode( "\n", `$svn log -v $t_url -r$t_revision` );
+			$t_svnlog = explode( "\n", shell_exec( "$svn log -v $t_url -r$t_revision" ) );
 
 			if ( SourceChangeset::exists( $p_repo->id, $t_revision ) ) {
 				echo "Revision $t_revision already committed!\n";
@@ -222,7 +222,7 @@
 
 		$t_url = $p_repo->url;
 		$t_rev = ( false === $t_db_revision ? 0 : $t_db_revision + 1 );
-		$t_svnlog = explode( "\n", `$svn log -v -r $t_rev:HEAD --limit 200 $t_url` );
+		$t_svnlog = explode( "\n", shell_exec( "$svn log -v -r $t_rev:HEAD --limit 200 $t_url" ) );
 
 		return $this->process_svn_log( $p_repo, $t_svnlog );
 	}
@@ -238,7 +238,7 @@
 	function check_svn() {
 		$svn = $this->svn_call();
 
-		if ( is_blank( `$svn help` ) ) {
+		if ( is_blank( shell_exec( "$svn help" ) ) ) {
 			trigger_error( ERROR_GENERIC, ERROR );
 		}
 	}